clarify upstream release status of 2.10 (#72269)

* clarify upstream release status of 2.10

* wordsmith

docs/docsite/_themes/sphinx_rtd_theme/ansible_banner.html

@@ -13,15 +13,21 @@
       // Create a banner if we're not the latest version
       current_url_path = window.location.pathname;
       if (startsWith(current_url_path, "/ansible/latest/") || startsWith(current_url_path, "/ansible/{{ latest_version }}/")) {
-       // no banner for latest release
+        document.write('<div id="banner_id" class="admonition caution">');
+        document.write('<p>You are reading the latest community version of the Ansible documentation. Red Hat subscribers, select <b>2.9</b> in the version selection to the left for the most recent Red Hat release.</p>');
+        document.write('</div>');
+
         /* temp banner to advertise AnsibleFest
         document.write('<div id="banner_id" class="admonition important">');
         document.write('<p><a href="https://www.ansible.com/ansiblefest?sc_cid=7013a000002gyPxAAI">AnsibleFest</a> is going virtual with two days of expert speakers, live demos and hands-on labs Oct 13-14!</p>');
         document.write('</div>'); */
-
+      } else if (startsWith(current_url_path, "/ansible/2.9/")) {
+        document.write('<div id="banner_id" class="admonition caution">');
+        document.write('<p>You are reading the latest Red Hat released version of the Ansible documentation. Community users can use this, or select any version in version selection to the left, including <b>latest</b> for the most recent community version.</p>');
+        document.write('</div>');
       } else if (startsWith(current_url_path, "/ansible/devel/")) {
         document.write('<div id="banner_id" class="admonition caution">');
-        document.write('<p>You are reading the *devel* version of the Ansible documentation - this version is not guaranteed stable. Use the version selection to the left if you want the latest stable released version.</p>');
+        document.write('<p>You are reading the <b>devel</b> version of the Ansible documentation - this version is not guaranteed stable. Use the version selection to the left if you want the latest stable released version.</p>');
         document.write('</div>');
       } else {
         document.write('<div id="banner_id" class="admonition caution">');