better vimrc

src/vimrc

@@ -1,6 +1,8 @@
 set autoindent expandtab tabstop=4 shiftwidth=4
 set hidden
 nnoremap <C-S> :w<cr>
+nnoremap <C-l> :bn<cr>
+nnoremap <C-h> :bp<cr>
 inoremap <C-S> <esc>:w<cr>i
 let mapleader=" "
 nnoremap <leader>w :w<cr>:bw<cr>