FDN#57: changing 4.13's banner text

Author: kalexand-rh

_templates/_page_openshift.html.erb

@@ -46,14 +46,22 @@
   <div class="container">
     <button id="hc-open-btn" class="open-btn-sm" onclick="openNav()" aria-label="Open"><span class="fa fa-bars" /></button>
     <ol class="breadcrumb hide-for-print">
-      <% if (version == "4.13" || distro_key == "openshift-webscale" || distro_key == "openshift-dpu") %>
+      <% if (distro_key == "openshift-webscale" || distro_key == "openshift-dpu") %>
       <span>
         <div class="alert alert-danger" role="alert" id="support-alert">
           <strong>This documentation is work in progress and might not be complete or fully tested.</strong> The latest supported version of version 3 is <a href="https://docs.openshift.com/container-platform/3.11/welcome/index.html" class="link-primary" style="color: #545454 !important;">[3.11]</a>. For the most recent version 4, see <a href="https://docs.openshift.com/container-platform/latest/welcome/index.html" style="color: #545454 !important" class="link-primary">[4]</a>.
         </div>
       </span>
       <% end %>
 
+      <% if (version == "4.13") && (distro_key != "openshift-webscale || "openshift-dpu") %>
+      <span>
+        <div class="alert alert-danger" role="alert" id="support-alert">
+          <strong>This documentation is a work in progress that aligns to preview releases of the next pending OpenShift Container Platform version 4 minor release. It might not be complete or fully tested, and some features and content might be removed before the next release. For the most recent released and supported version, see <a href="https://docs.openshift.com/container-platform/latest/welcome/index.html" style="color: #545454 !important" class="link-primary">[4]</a>.
+        </div>
+      </span>
+      <% end %>
+
       <% if ((unsupported_versions.include? version) && (distro_key == "openshift-enterprise")) %>
 
       <span>