Add AnsibleFest banner (#75476) (#75493)

* add AnsibleFest banner

* fix nit

(cherry picked from commit dc6878007b)

docs/docsite/.templates/banner.html

@@ -14,13 +14,16 @@
       });
     }
     var banner = '';
-    var survey_banner =
-      '<div id="latest_survey_banner_id" class="admonition important">' +
+    //use extra_banner for when marketing wants something extra, like a survey or AnsibleFest notice
+    var extra_banner =
+      '<div id="latest_extra_banner_id" class="admonition important">' +
       '<br>' +
       '<p>' +
-        'Please take our ' +
-        '<a href="https://www.surveymonkey.co.uk/r/2VWVJY3">survey</a> ' +
-        'to help us improve support for collections and roles in GalaxyNG.' +
+        'You\'re invited to AnsibleFest 2021! ' +
+      '<p>' +
+        'Explore ways to automate, innovate, and accelerate with our free virtual event September 29-30. ' +
+      '<pr>' +
+        '<a href="https://reg.ansiblefest.redhat.com/flow/redhat/ansible21/regGenAttendee/login">Register now!</a> ' +
       '</p>' +
       '<br>' +
       '</div>';
@@ -39,15 +42,15 @@
       if (startsWith(current_url_path, "/ansible-core/")) {
         msg += 'You are reading documentation for Ansible Core, which contains no plugins except for those in ansible.builtin. For documentation of the Ansible package, go to <a href="/ansible/latest">the latest documentation</a>.';
       } else if (startsWithOneOf(current_url_path, ["/ansible/latest/", "/ansible/{{ latest_version }}/"])) {
-        /* temp banner to advertise GalaxyNG survey */
-      //  banner += survey_banner;
+        /* temp extra banner to advertise AnsibeFest2021 */
+        banner += extra_banner;
 
         msg += '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.';
       } else if (startsWith(current_url_path, "/ansible/2.9/")) {
         msg += 'You are reading the latest Red Hat released version of the Ansible documentation. Community users can use this version, or select <b>latest</b> from the version selector to the left for the most recent community version.';
       } else if (startsWith(current_url_path, "/ansible/devel/")) {
-        /* temp banner to advertise GalaxyNG survey */
-      //  banner += survey_banner;
+        /* temp extra banner to advertise AnsibleFest2021 */
+        banner += extra_banner;
 
         /* temp banner to advertise survey
         important = true;