should document new bundles

Author: Yu-Hung Lin

README.md

@@ -90,6 +90,8 @@ specs from Vim.
 * [ZoomWin](http://www.vim.org/scripts/script.php?script_id=508) lets you close all other windows
 with `<C-w>o`. You can restore all the closed windows with the same command. Useful with `:tabo` to
 close everything but what you're working on.
+* [vim-multiple-cursors](https://github.com/terryma/vim-multiple-cursors) True Sublime Text style
+multiple selections for Vim.
 
 ## Clojure