Add versions

docs/_includes/deprecated.html

@@ -0,0 +1,8 @@
+{% if site.deprecated %}
+  <div class="notification is-info" style="border-radius: 0; margin-bottom: 0;">
+    <p>
+      You are viewing the deprecated <strong>{{site.version}}</strong> version of the website.
+      <a href="/">Click here to view the latest version</a>
+    </p>
+  </div>
+{% endif %}

docs/_includes/navbar.html

@@ -62,7 +62,14 @@
           </a>
           <hr class="navbar-divider">
           <div class="navbar-item">
-            <div>version <p class="has-text-info is-size-6-desktop">{{ site.version }}</p></div>
+            <div>
+              <p class="has-text-info is-size-6-desktop"><strong>{{ site.version }}</strong></p>
+              {{#unless site.deprecated}}
+                <small>
+                  <a class="view-all-versions" href="/versions">View all versions</a>
+                </small>
+              {{/unless}}
+            </div>
           </div>
         </div>
       </div>