docs: fix RST format

Author: kenjis

user_guide_src/source/changelogs/v4.4.0.rst

@@ -154,7 +154,7 @@ Deprecations
   ``ExceptionHandler``.
 - **Autoloader:** ``Autoloader::sanitizeFilename()`` is deprecated.
 - **CodeIgniter:** ``CodeIgniter::$returnResponse`` property is deprecated. No longer used.
-- **RedirectException:** ``\CodeIgniter\Router\Exceptions\RedirectException`` is deprecated. Use \CodeIgniter\HTTP\Exceptions\RedirectException instead.
+- **RedirectException:** ``\CodeIgniter\Router\Exceptions\RedirectException`` is deprecated. Use ``\CodeIgniter\HTTP\Exceptions\RedirectException`` instead.
 - **Session:** The property ``$sessionDriverName``, ``$sessionCookieName``,
   ``$sessionExpiration``, ``$sessionSavePath``, ``$sessionMatchIP``,
   ``$sessionTimeToUpdate``, and ``$sessionRegenerateDestroy`` in ``Session`` are