diff --git a/.nojekyll b/.nojekyll
index a638be1..1154af9 100644
--- a/.nojekyll
+++ b/.nojekyll
@@ -1 +1 @@
-e199c588
\ No newline at end of file
+e80ae6d1
\ No newline at end of file
diff --git a/index.html b/index.html
index 1d53409..f633454 100644
--- a/index.html
+++ b/index.html
@@ -121,7 +121,7 @@ <h3 class="anchored" data-anchor-id="what-is-htr-united">What is HTR-United?</h3
 <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3>
 <p>This page is only dedicated to a generic oversight of the content of the catalog, mainly in the form of plots. If you want to browse the datasets listed in the catalog, there is a more suitable interface for that <a href="https://htr-united.github.io/catalog.html">here</a>.</p>
 <!-- library import -->
-<div id="12ff7500" class="cell" data-execution_count="1">
+<div id="ee3c5a47" class="cell" data-execution_count="1">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="co"># install necessary packages</span></span>
@@ -142,7 +142,7 @@ <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3
 </details>
 </div>
 <!-- some function definition -->
-<div id="76bbd4a7" class="cell" data-execution_count="2">
+<div id="b686596f" class="cell" data-execution_count="2">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="co"># function to built the bar plots</span></span>
@@ -181,7 +181,7 @@ <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3
 <section id="downloading-the-catlaog" class="level2">
 <h2 class="anchored" data-anchor-id="downloading-the-catlaog">Downloading the catlaog</h2>
 <!-- library import -->
-<div id="31d794d7" class="cell" data-execution_count="3">
+<div id="7f80bd5e" class="cell" data-execution_count="3">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="co"># fetch latest version of the catalog</span></span>
@@ -228,7 +228,7 @@ <h2 class="anchored" data-anchor-id="downloading-the-catlaog">Downloading the ca
 </section>
 <section id="language-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="language-coverage">Language coverage</h2>
-<div id="e29457d6" class="cell" data-execution_count="4">
+<div id="1bc1f8d3" class="cell" data-execution_count="4">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb5"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>languages <span class="op">=</span> []</span>
@@ -266,7 +266,7 @@ <h2 class="anchored" data-anchor-id="language-coverage">Language coverage</h2>
 </section>
 <section id="script-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="script-coverage">Script coverage</h2>
-<div id="c98cc87a" class="cell" data-execution_count="5">
+<div id="05992a79" class="cell" data-execution_count="5">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb7"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>scripts_dict <span class="op">=</span> []</span>
@@ -308,7 +308,7 @@ <h2 class="anchored" data-anchor-id="script-coverage">Script coverage</h2>
 </section>
 <section id="writing-type-type-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="writing-type-type-coverage">Writing type type coverage</h2>
-<div id="edd36565" class="cell" data-execution_count="6">
+<div id="7467f675" class="cell" data-execution_count="6">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb9"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a>script_types <span class="op">=</span> [entry.get(<span class="st">"script-type"</span>) <span class="cf">for</span> entry <span class="kw">in</span> data <span class="cf">if</span> entry.get(<span class="st">"script-type"</span>)]</span>
@@ -335,7 +335,7 @@ <h2 class="anchored" data-anchor-id="writing-type-type-coverage">Writing type ty
 </section>
 <section id="software-variety" class="level2">
 <h2 class="anchored" data-anchor-id="software-variety">Software variety</h2>
-<div id="bdec3075" class="cell" data-execution_count="7">
+<div id="0363506d" class="cell" data-execution_count="7">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb11"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a>softwares <span class="op">=</span> [entry.get(<span class="st">"production-software"</span>) <span class="cf">for</span> entry <span class="kw">in</span> data <span class="cf">if</span> entry.get(<span class="st">"production-software"</span>)]</span>
@@ -369,7 +369,7 @@ <h2 class="anchored" data-anchor-id="software-variety">Software variety</h2>
 </section>
 <section id="project-diversity" class="level2">
 <h2 class="anchored" data-anchor-id="project-diversity">Project diversity</h2>
-<div id="2209ed81" class="cell" data-execution_count="8">
+<div id="26b46a0b" class="cell" data-execution_count="8">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb13"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="co"># nb of datasets in the catalog</span></span>
@@ -412,7 +412,7 @@ <h2 class="anchored" data-anchor-id="project-diversity">Project diversity</h2>
 </section>
 <section id="volumetry" class="level2">
 <h2 class="anchored" data-anchor-id="volumetry">Volumetry</h2>
-<div id="60904b99" class="cell" data-execution_count="9">
+<div id="4ad236ce" class="cell" data-execution_count="9">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb15"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a>metrics <span class="op">=</span> {</span>
diff --git a/visualize_catalog_content.html b/visualize_catalog_content.html
index 1d53409..f633454 100644
--- a/visualize_catalog_content.html
+++ b/visualize_catalog_content.html
@@ -121,7 +121,7 @@ <h3 class="anchored" data-anchor-id="what-is-htr-united">What is HTR-United?</h3
 <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3>
 <p>This page is only dedicated to a generic oversight of the content of the catalog, mainly in the form of plots. If you want to browse the datasets listed in the catalog, there is a more suitable interface for that <a href="https://htr-united.github.io/catalog.html">here</a>.</p>
 <!-- library import -->
-<div id="12ff7500" class="cell" data-execution_count="1">
+<div id="ee3c5a47" class="cell" data-execution_count="1">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb1"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="co"># install necessary packages</span></span>
@@ -142,7 +142,7 @@ <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3
 </details>
 </div>
 <!-- some function definition -->
-<div id="76bbd4a7" class="cell" data-execution_count="2">
+<div id="b686596f" class="cell" data-execution_count="2">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb2"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="co"># function to built the bar plots</span></span>
@@ -181,7 +181,7 @@ <h3 class="anchored" data-anchor-id="what-is-shown-here">What is shown here?</h3
 <section id="downloading-the-catlaog" class="level2">
 <h2 class="anchored" data-anchor-id="downloading-the-catlaog">Downloading the catlaog</h2>
 <!-- library import -->
-<div id="31d794d7" class="cell" data-execution_count="3">
+<div id="7f80bd5e" class="cell" data-execution_count="3">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb3"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="co"># fetch latest version of the catalog</span></span>
@@ -228,7 +228,7 @@ <h2 class="anchored" data-anchor-id="downloading-the-catlaog">Downloading the ca
 </section>
 <section id="language-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="language-coverage">Language coverage</h2>
-<div id="e29457d6" class="cell" data-execution_count="4">
+<div id="1bc1f8d3" class="cell" data-execution_count="4">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb5"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>languages <span class="op">=</span> []</span>
@@ -266,7 +266,7 @@ <h2 class="anchored" data-anchor-id="language-coverage">Language coverage</h2>
 </section>
 <section id="script-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="script-coverage">Script coverage</h2>
-<div id="c98cc87a" class="cell" data-execution_count="5">
+<div id="05992a79" class="cell" data-execution_count="5">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb7"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a>scripts_dict <span class="op">=</span> []</span>
@@ -308,7 +308,7 @@ <h2 class="anchored" data-anchor-id="script-coverage">Script coverage</h2>
 </section>
 <section id="writing-type-type-coverage" class="level2">
 <h2 class="anchored" data-anchor-id="writing-type-type-coverage">Writing type type coverage</h2>
-<div id="edd36565" class="cell" data-execution_count="6">
+<div id="7467f675" class="cell" data-execution_count="6">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb9"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a>script_types <span class="op">=</span> [entry.get(<span class="st">"script-type"</span>) <span class="cf">for</span> entry <span class="kw">in</span> data <span class="cf">if</span> entry.get(<span class="st">"script-type"</span>)]</span>
@@ -335,7 +335,7 @@ <h2 class="anchored" data-anchor-id="writing-type-type-coverage">Writing type ty
 </section>
 <section id="software-variety" class="level2">
 <h2 class="anchored" data-anchor-id="software-variety">Software variety</h2>
-<div id="bdec3075" class="cell" data-execution_count="7">
+<div id="0363506d" class="cell" data-execution_count="7">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb11"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a>softwares <span class="op">=</span> [entry.get(<span class="st">"production-software"</span>) <span class="cf">for</span> entry <span class="kw">in</span> data <span class="cf">if</span> entry.get(<span class="st">"production-software"</span>)]</span>
@@ -369,7 +369,7 @@ <h2 class="anchored" data-anchor-id="software-variety">Software variety</h2>
 </section>
 <section id="project-diversity" class="level2">
 <h2 class="anchored" data-anchor-id="project-diversity">Project diversity</h2>
-<div id="2209ed81" class="cell" data-execution_count="8">
+<div id="26b46a0b" class="cell" data-execution_count="8">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb13"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="co"># nb of datasets in the catalog</span></span>
@@ -412,7 +412,7 @@ <h2 class="anchored" data-anchor-id="project-diversity">Project diversity</h2>
 </section>
 <section id="volumetry" class="level2">
 <h2 class="anchored" data-anchor-id="volumetry">Volumetry</h2>
-<div id="60904b99" class="cell" data-execution_count="9">
+<div id="4ad236ce" class="cell" data-execution_count="9">
 <details class="code-fold">
 <summary>Code</summary>
 <div class="sourceCode cell-code" id="cb15"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a>metrics <span class="op">=</span> {</span>