[doc] Release schedule, version policies, support lifecycle

docs/_includes/sidebar.html

@@ -1,8 +1,8 @@
 {% include custom/sidebarconfigs.html %}
 
 <ul id="mysidebar" class="nav">
-    <li class="sidebarTitle">{{sidebar[0].product}} {{sidebar[0].version | replace: '!PMD_VERSION!', site.pmd.version}}</li>
-    <div class="sidebarTitleDate">Release date: {{site.pmd.date}}</div>
+    <li class="sidebarTitle">{{site.sidebar_title}} {{site.pmd.version}}</li>
+    <div class="sidebarTitleDate">Release date: {{site.pmd.date | date: "%d-%B-%Y" }}</div>
     {% for entry in sidebar %}
     {% for folder in entry.folders %}
     {% if folder.output contains "web" %}