diff --git a/docs/pages/introduction/feature.txt b/docs/pages/introduction/feature.txt
index b8cfb6c5..1a98259d 100644
--- a/docs/pages/introduction/feature.txt
+++ b/docs/pages/introduction/feature.txt
@@ -3,17 +3,16 @@ Features
 - Write a table in various formats:
     - Text formats:
         - `AsciiDoc <https://asciidoc.org/>`__
-        - CSV / Tab-separated values (TSV)
+        - CSV / Tab-separated values (TSV) / Space-separated values (SSV)
         - HTML / CSS
         - JSON / `Line-delimited JSON(LDJSON) <https://en.wikipedia.org/wiki/JSON_streaming#Line-delimited_JSON>`__
         - `Labeled Tab-separated Values (LTSV) <http://ltsv.org/>`__
         - LaTeX: ``tabular``/``array`` environment
-        - Markdown: GitHub Flavored Markdown (GFM), etc.
-        - MediaWiki
+        - Markdown: `GitHub Flavored Markdown (GFM) <https://github.github.com/gfm/>`__, etc.
+        - `MediaWiki <https://www.mediawiki.org/wiki/MediaWiki>`__
         - reStructuredText: `Grid Tables <http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html#grid-tables>`__/`Simple Tables <http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html#simple-tables>`__/`CSV Table <http://docutils.sourceforge.net/docs/ref/rst/directives.html#id4>`__
         - Source code (definition of a variable that represents tabular data)
             - JavaScript / `NumPy <https://www.numpy.org/>`__ (`numpy.array <https://docs.scipy.org/doc/numpy/reference/generated/numpy.array.html>`__) / `Pandas <https://pandas.pydata.org/>`__ (`pandas.DataFrame <https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.html>`__) / Python
-        - Space aligned values
         - `TOML <https://github.com/toml-lang/toml>`__
         - `YAML <https://yaml.org/>`__
         - Unicode