gh-106318: Add link to str.capitalize on the str.title() docs (GH-144578)

Author: adorilson

Doc/builtins/stdtypes.rst

@@ -3147,7 +3147,7 @@ expression support in the :mod:`re` module).
         >>> titlecase("they're bill's friends.")
         "They're Bill's Friends."
 
-   See also :meth:`istitle`.
+   See also :meth:`istitle` and :meth:`capitalize`.
 
 
 .. method:: str.translate(table, /)