Note how to to use hints to open hyperlinks

docs/kittens/hyperlinked_grep.rst

@@ -45,7 +45,8 @@ Now, run a search with::
 Hold down the :kbd:`Ctrl+Shift` keys and click on any of the result lines, to
 open the file in :program:`vim` at the matching line. If you use some editor
 other than :program:`vim`, you should adjust the :file:`open-actions.conf` file
-accordingly.
+accordingly. TO open links with the keyboard instead, use
+:sc:`open_selected_hyperlink`.
 
 Finally, add an alias to your shell's rc files to invoke the kitten as
 :command:`hg`::