_padding.scss in susy-2.0.0.alpha.3

- old
+ new

@@ -1,12 +1,16 @@
-// Padding
-// =======
+// Padding API
+// ===========
 
-// Add padding before or after an element
+// Padding Output
+// --------------
+// - $before  : <length>
+// - $after   : <length>
+// - [$flow]  : ltr | rtl
 @mixin padding-output(
   $before,
-  $after    : $before,
-  $flow     : $flow
+  $after,
+  $flow: $flow
 ) {
   $to: to($flow);
   $from: from($flow);
 
   padding-#{$from}: $before;