feat(partners): add new page with rhombus top and contact bottom

src/_includes/contact.html

@@ -1,6 +1,6 @@
 <section id="reachout" class="row justify-content-center">
   <div class="col-12 col-md-8 col-lg-6">
-    <h2 class="text-center text-md-start d-block mb-3">The time is now—reach out to learn more</h2>
+    <h2 class="h1 text-center text-md-start d-block mb-3">The time is now—reach out to learn more</h2>
   </div>
 </section>
 

src/partners.html

@@ -0,0 +1,21 @@
+---
+layout: default
+permalink: /partners
+title: Partners
+---
+
+{% include clipped.html %}
+
+<div class="row justify-content-center">
+  <div class="clipped background-purple-4 rhombus-1 col-11 col-md-10 mt-4 mt-md-5 mb-4 py-4 py-md-5 px-4 px-md-0">
+    <div class="offset-md-2 col-md-8 py-3 py-md-5 px-2 px-md-2">
+      <h1 class="text-white mb-2">Partners</h1>
+      <p class="text-white mb-3 pb-3">
+        Bringing a modern and consistent transportation experience to all Californians requires help from a broad range of
+        experts. That's why Cal-ITP is proud to work collaboratively with our partners.
+      </p>
+    </div>
+  </div>
+</div>
+
+{% include contact.html %}