docs: capitalize section title

kenjis · kenjis · commit fbf48150fe36 · 2023-04-12T14:03:43.000+09:00
diff --git a/user_guide_src/source/libraries/validation.rst b/user_guide_src/source/libraries/validation.rst
@@ -361,7 +361,7 @@ the validation.
 
 .. _validation-array:
 
-How to save your rules
+How to Save Your Rules
 ----------------------
 
 To store your validation rules, simply create a new public property in the ``Config\Validation``
