docs: decorate text

Author: kenjis

user_guide_src/source/installation/upgrade_414.rst

@@ -18,10 +18,10 @@ This release focuses on code style. All changes (except those noted below) are c
 Breaking Changes
 ****************
 
-The following methods were changed from "public" to "protected" to match their parent class methods and better align with their uses.
 Method Scope
 ============
 
+The following methods were changed from ``public`` to ``protected`` to match their parent class methods and better align with their uses.
 If you relied on any of these methods being public (highly unlikely) adjust your code accordingly:
 
 * ``CodeIgniter\Database\MySQLi\Connection::execute()``