fix vim-multiple-cursors submodule path

.gitmodules

@@ -72,7 +72,7 @@
 	url = https://github.com/Lokaltog/powerline.git
 [submodule "vim/bundle/vim-multiple-cursors"]
 	path = vim/bundle/vim-multiple-cursors
-	url = ttps://github.com/terryma/vim-multiple-cursors.git
+	url = https://github.com/terryma/vim-multiple-cursors.git
 [submodule "vim/bundle/vim-autoclose"]
 	path = vim/bundle/vim-autoclose
 	url = https://github.com/Townk/vim-autoclose.git