Add buffer management keys

.vimrc

@@ -63,6 +63,10 @@ inoremap <Right> <Nop>
 inoremap <Up> <Nop>
 inoremap <Down> <Nop>
 
+" Buffer Management
+nnoremap <Leader>j :bp<CR>
+nnoremap <Leader>k :bn<CR>
+
 " Move lines up/down
 nnoremap <C-Down> :m .+1<CR>==
 nnoremap <C-Up> :m .-2<CR>==
@@ -77,7 +81,6 @@ vnoremap < <gv
 nnoremap <Leader>p "+p
 vnoremap <Leader>y "+y
 
-
 " Automatically change current directory to that of the file in the buffer
 autocmd BufEnter * cd %:p:h
 
@@ -85,7 +88,6 @@ autocmd BufEnter * cd %:p:h
 " directory, and show all files that contain it
 map <F4> :execute "vimgrep /" . expand("<cword>") . "/j **" <Bar> cw<CR>
 
-
 " Disable gvim toolbars by default
 set guioptions-=T
 set guioptions-=m