docs: add empty lines

Author: kenjis

user_guide_src/source/incoming/filters.rst

@@ -106,7 +106,9 @@ filters to run:
 
 .. literalinclude:: filters/003.php
 
-Aliases are mandatory and if you try to use a full class name later, the system will throw an error. Defining them
+Aliases are mandatory and if you try to use a full class name later, the system will throw an error.
+
+Defining them
 in this way makes it simple to switch out the class used. Great for when you decided you need to change to a
 different authentication system since you only change the filter's class and you're done.
 

user_guide_src/source/incoming/routing.rst

@@ -388,6 +388,7 @@ Applying Filters
 ================
 
 You can alter the behavior of specific routes by supplying filters to run before or after the controller. This is especially handy during authentication or api logging.
+
 The value for the filter can be a string or an array of strings:
 
 * matching the aliases defined in **app/Config/Filters.php**.