wip: Add mentorship section

Signed-off-by: Arthur Silva Sens <arthursens2005@gmail.com>

Author: ArthurSens

content/mentorship.html

@@ -0,0 +1,13 @@
+---
+title: Mentorship
+---
+<div class="row">
+  <div class="col-md-12 doc-content">
+
+    <h1>Mentorship Programs</h1>
+    <p>
+        Prometheus offers paid mentorship programs through CNCF mentorship initiatives(See <a href="https://github.com/cncf/mentorship">https://github.com/cncf/mentorship</a>). Such initiatives create opportunities to people who want to contribute to Prometheus, but have a hard time understanding how to start.
+    </p>
+
+  </div>
+</div>

layouts/header.html

@@ -80,6 +80,7 @@
             <li><a href="/docs/introduction/overview/">Docs</a></li>
             <li><a href="/download/">Download</a></li>
             <li><a href="/community/">Community</a></li>
+            <li><a href="/mentorship/">Mentorship</a></li>
             <li><a href="/support-training/">Support & Training</a></li>
             <li><a href="/blog/">Blog</a></li>
             <li><input class="searchbox form-control" type="search" placeholder="Search" aria-label="Search"></li>