Update readme.

README.md

@@ -3,4 +3,4 @@ should make your time in insert mode a little bit easier, like syntax awareness
 in comments and other configurable regions), <CR> and <Space> expansions (off by default), and some more.
 
 Most of the features can be modified or disabled permanently, using global variables, or on a FileType basis, using
-:autocmd. With a couple of exceptions and limitations, these features don't break undo, redo or history.
+:autocmd.