4.1 Docs Audit: Spell out HTML element names in DocBlock summaries for the `nav_menu_css_class`, `nav_menu_item_id`, and `nav_menu_link_attributes` filters.

Due to a recent clarification in the core inline documentation standards, HTML tags are no longer allowed in DocBlock summaries as they wreak havoc on displaying pages in the official Code Reference. See #30473.

See #30469.


git-svn-id: https://develop.svn.wordpress.org/trunk@30618 602fd350-edb4-49c9-b593-d223f7449a82