Add new kompose site (#1475)

Adds the new kompose site and moves it to the /docs folder so that it's
compatible with old links as well as gh-pages

docs/_includes/footer.html

@@ -0,0 +1,42 @@
+<!-- Footer -->
+<div class="footer">
+  <div class="container text-center">
+    <span class="copyright">
+      We are a Kubernetes incubator graduated project and officially part of the Kubernetes group
+      <br>
+      Apache License 2.0 licensed project
+      <br>
+      © {{ site.year }} Kompose Authors -- All Rights Reserved
+    </span>
+  </div>
+  <div class="container">
+    <div class="row text-center">
+      <div class="col-lg-2 col-md-3 col-sm-12">
+        <div class="footer-logo">
+          <h2>{{ site.name }}</h2>
+        </div>
+      </div>
+      <div class="col-lg-6 col-md-6 col-sm-12">
+        <ul class="footer-menu">
+          <!--
+            {% for item in site.data.menu.footer %}
+            <li><a href="{{ item[1] }}">{{ item[0] }}</a></li>
+            {% endfor %}
+          -->
+
+        </ul>
+      </div>
+      <div class="col-lg-4 col-md-3 col-sm-12">
+        <div class="footer-links">
+          <ul>
+            <li><a href="{{ site.slack_page }}" target="_blank"><img class="img-fluid" src="/assets/icons/slack.png" alt="Slack">Slack</a> </li>
+            <li><a href="{{ site.github_page }}" target="_blank"><img class="img-fluid" src="/assets/icons/github.png" alt="GitHub">GitHub</a> </li>
+          </ul>
+        </div>
+      </div>
+    </div>
+    <!-- Scroll To Top -->
+    <!--<a id="back-top" class="back-to-top js-scroll-trigger" href="#main"></a>-->
+    <!-- Scroll To Top Ends-->
+  </div>
+</div>