docs: add empty line

Author: kenjis

user_guide_src/source/concepts/autoloader.rst

@@ -49,9 +49,10 @@ arrays: one for the classmap, and one for PSR-4 compatible namespaces.
 Namespaces
 ==========
 
-The recommended method for organizing your classes is to create one or more namespaces for your
-application's files. This is most important for any business-logic related classes, entity classes,
-etc. The ``$psr4`` array in the configuration file allows you to map the namespace to the directory
+The recommended method for organizing your classes is to create one or more namespaces
+for your application's files.
+
+The ``$psr4`` array in the configuration file allows you to map the namespace to the directory
 those classes can be found in:
 
 .. literalinclude:: autoloader/001.php