Tweak of coding style doc

CODING_STYLE.md

@@ -101,11 +101,11 @@ def funcname(a, b, c, d=False, **kwargs):
         c (list): A list argument.
         d (bool, optional): An optional keyword argument.
 
-    Kwargs:
+    Keyword Args:
         test (list): A test keyword.
 
     Returns:
-        e (str): The result of the function.
+        str: The result of the function.
 
     Raises:
         RuntimeException: If there is a critical error,
@@ -129,18 +129,12 @@ indents to be 4 spaces wide (no tabs!).
 Here are all the supported block headers:
 
 ```
-    Args/Arg/Kwargs/Kwarg:
+    Args/Keyword Args:
         argname (freeform type): text
-        or
-        freeform text
     Returns/Yields:
-        kwargname (freeform type): text
-        or
-        freeform text
+        type: text
     Raises:
         Exceptiontype: text
-        or
-        freeform text
     Notes/Note/Examples/Example:
         freeform text
 ```