DOC-3246: Add deprecation messaging to tinycomments_fetch_author_info option

Author: kimwoodfield

modules/ROOT/pages/comments-callback-mode.adoc

@@ -67,6 +67,8 @@ include::partial$configuration/tinycomments_resolve.adoc[leveloffset=+1]
 
 include::partial$configuration/tinycomments_fetch.adoc[leveloffset=+1]
 
+include::partial$configuration/fetch_users.adoc[leveloffset=+1]
+
 include::partial$configuration/tinycomments_fetch_author_info.adoc[leveloffset=+1]
 
 include::partial$plugins/comments-open-sidebar.adoc[]

modules/ROOT/partials/configuration/tinycomments_fetch_author_info.adoc

@@ -1,6 +1,8 @@
 [[tinycomments_fetch_author_info]]
 == `+tinycomments_fetch_author_info+`
 
+include::partial$DEPRECATED/generic_8_userlookup.adoc[]
+
 The {pluginname} plugin uses the `+tinycomments_fetch_author_info+` callback function to provide author details for comments displayed in the editor.
 
 This function is called whenever a comment is rendered, and it allows the editor to display the author’s name and avatar based on the current user.