Fix readme

Author: Pascal Berger

README.md

@@ -96,14 +96,14 @@ Allows the message shown in the overlay to be updated while to block is active.
 #### done
 Queues a callback function to be called when the block has finished. This can be useful whenever you wish to redirect the user to a different location while there are still pending AJAX requests.
 
-#### isBlocking
-Returns whether currently a block is shown for the instance or not.
-
 **Arguments:**
 
 * **callback** (function)
 The callback function to queue.
 
+#### isBlocking
+Returns whether currently a block is shown for the instance or not.
+
 Blocking individual elements
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