docs: add section "Routing"

Author: kenjis

user_guide_src/source/changelogs/v4.5.0.rst

@@ -165,13 +165,13 @@ The benchmark points have been changed:
    - ``required_before_filters``: Instantiating Filters object, Running *Required Before Filters*.
    - ``routing``: Instantiating RouteCollection object, Loading Routes files, Instantiating Router object, Routing,
 
-Others
-======
+Routing
+=======
 
 - **AutoRouting Improved:** The ``$translateUriToCamelCase`` option has been added
   that allows using CamelCase controller and method names. See
   :ref:`controller-translate-uri-to-camelcase`.
-- **Routing:**
+- **Others:**
     - Added option ``$multipleSegmentsOneParam``. When this option is
       enabled, a placeholder that matches multiple segments, such as ``(:any)``, will
       be passed directly as it is to one parameter, even if it contains multiple segments.
@@ -180,6 +180,10 @@ Others
       a ``PageNotFoundException`` message as the first parameter.
     - Now you can use the ``__invoke()`` method as the default method. See
       :ref:`routing-default-method`.
+
+Others
+======
+
 - **Autoloader:**
     - Autoloading performance when using Composer has been improved.
       Adding the ``App`` namespace in the ``autoload.psr4`` setting in **composer.json**