Release notes: Make ExternalProject dot points consistent

Use same phrasing and command linking.

Help/release/3.14.rst

@@ -172,7 +172,7 @@ Modules
 * The :module:`ExternalProject` module :command:`ExternalProject_Add` command
   gained ``LOG_PATCH`` to optionally log the patch step.
 
-* The :module:`ExternalProject` module's ``ExternalProject_Add`` command
+* The :module:`ExternalProject` module :command:`ExternalProject_Add` command
   learned to apply ``SOURCE_SUBDIR`` when ``BUILD_IN_SOURCE`` is also used.
   The ``BUILD_COMMAND`` is run in the given ``SOURCE_SUBDIR`` of the
   ``SOURCE_DIR``.