Adds documentation references to the filter's docblock in `wp-includes/post-template.php`. Follow-up to [38833]. Props pmbaldha, mukesh27, sabernhardt. Fixes #63637. Built from https://develop.svn.wordpress.org/trunk@60430 git-svn-id: http://core.svn.wordpress.org/trunk@59766 1a063a9b-81f0-0310-95a4-ce76da25c4cd