Minor syntactical adjustments to the inline documentation for the `revision_text_diff_options` hook.

Converts backticked-inline-code to inline `@see` tags (for the full benefit of Code Reference automagical behavior).

See [30396]. See #24908.

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git-svn-id: http://core.svn.wordpress.org/trunk@30486 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`split_shared_term` is an action, not a filter.

See #30335

Built from https://develop.svn.wordpress.org/trunk@30498


git-svn-id: http://core.svn.wordpress.org/trunk@30487 1a063a9b-81f0-0310-95a4-ce76da25c4cd