docs: make it more readable

Author: kenjis

user_guide_src/source/outgoing/response.rst

@@ -44,13 +44,16 @@ Setting Headers
 ---------------
 
 Often, you will need to set headers to be set for the response. The Response class makes this very simple to do,
-with the ``setHeader()`` method. The first parameter is the name of the header. The second parameter is the value,
+with the ``setHeader()`` method.
+
+The first parameter is the name of the header. The second parameter is the value,
 which can be either a string or an array of values that will be combined correctly when sent to the client.
-Using these functions instead of using the native PHP functions allows you to ensure that no headers are sent
-prematurely, causing errors, and makes testing possible.
 
 .. literalinclude:: response/004.php
 
+Using these functions instead of using the native PHP functions allows you to ensure that no headers are sent
+prematurely, causing errors, and makes testing possible.
+
 If the header exists and can have more than one value, you may use the ``appendHeader()`` and ``prependHeader()``
 methods to add the value to the end or beginning of the values list, respectively. The first parameter is the name
 of the header, while the second is the value to append or prepend.