Better comments for FZF Actions

I'll never open files in tabs. Commented code to explain opeing FZF
result in split,vsplit or copying filename to buffer.

.vimrc

@@ -168,9 +168,10 @@ let g:airline#extensions#tabline#enabled = 1
 let g:airline_theme = 'angr'
 
 " FZF Actions
-" <c-o> to copy FZF result into current buffer
+" <c-x> to open FZF result in a split
+" <c-v> to open FZF result in a vsplit
+" <c-o> to copy FZF result as text into current buffer
 let g:fzf_action = {
-  \ 'ctrl-t': 'tab split',
   \ 'ctrl-x': 'split',
   \ 'ctrl-v': 'vsplit',
   \ 'ctrl-o': ':r !echo'}