docs: fix by proofreading

Co-authored-by: MGatner <[email protected]>

Author: kenjis

user_guide_src/source/changelogs/v4.4.0.rst

@@ -225,7 +225,7 @@ Others
 - **Factories:**
     - You can now define the classname that will actually be loaded.
       See :ref:`factories-defining-classname-to-be-loaded`.
-    - The Config Caching implemented. See :ref:`factories-config-caching` for details.
+    - Config Caching implemented. See :ref:`factories-config-caching` for details.
 
 Message Changes
 ***************

user_guide_src/source/concepts/factories.rst

@@ -270,7 +270,7 @@ Config Caching
 
 .. versionadded:: 4.4.0
 
-To improve performance, the Config Caching has been implemented.
+To improve performance, Config Caching has been implemented.
 
 Prerequisite
 ============
@@ -298,7 +298,7 @@ to shutdown, and the cached instances are used permanently.
 How to Update Config Values
 ===========================
 
-Once cached, the cache is never expired. Changing a existing Config file
+Once stored, the cached versions never expire. Changing a existing Config file
 (or changing Environment Variables for it) will not update the cache nor the Config
 values.