Updated IE support

Author: sdecima

README.md

@@ -58,11 +58,11 @@ Works great on:
 
  - Chrome
  - Firefox
- - IE 10 and below
+ - IE 11 and below (tested on 11, 10, 9, 8 and 7)
 
 Doesn't work on:
 
- - IE 11
+ - ???
 
 TODO
 ====
@@ -113,4 +113,4 @@ External links
 [2]: http://www.backalleycoder.com/2013/03/14/oft-overlooked-overflow-and-underflow-events/
 [3]: http://www.backalleycoder.com/
 [4]: http://www.w3.org/TR/dom/#mutation-observers
-[5]: http://msdn.microsoft.com/en-us/library/ie/ms536959
+[5]: http://msdn.microsoft.com/en-us/library/ie/ms536959