add save sudo nvim

nvim/.config/nvim/init.vim

@@ -23,7 +23,6 @@ let g:easyescape_chars = { "j": 1, "k": 1 }
 let g:easyescape_timeout = 100
 inoremap jk <esc>
 inoremap kj <esc>
-map <C-n> :NERDTreeToggle<CR>
 set ignorecase
 set smartcase
 set mouse=a
@@ -35,3 +34,8 @@ set shiftwidth=4    " number of spaces to use for autoindent
 set expandtab       " tabs are space
 set autoindent
 set copyindent      " copy indent from the previous line
+
+map <C-n> :NERDTreeToggle<CR>
+
+" Allow saving of files as sudo when I forgot to start vim using sudo.
+cmap w!! w !sudo tee > /dev/null %