DOC-3209: TinyMCE 8.1.0 Release Documentation and Community Changelog.

Author: kemister85

modules/ROOT/pages/8.1.0-release-notes.adoc

@@ -2,7 +2,7 @@
 :release-version: 8.1
 :navtitle: {productname} {release-version}
 :description: Release notes for {productname} {release-version}
-:keywords: releasenotes, new, changes, bugfixes
+:keywords: releasenotes, new, changes, bugfixes, new features, improvements, additions, changes, removals, security fixes, deprecated, known issues
 :page-toclevels: 1
 
 include::partial$misc/admon-releasenotes-for-stable.adoc[]