nvim: show git status in nerdtree

.config/nvim/init.vim

@@ -251,8 +251,9 @@ nnoremap <leader>gc :Git commit<CR>
 nnoremap <leader>ga :Git add .<CR>
 nnoremap <leader>gp :Git push<CR>
 
-nnoremap g. :GitGutterNextHunk<CR>
-nnoremap g, :GitGutterPrevHunk<CR>
+nnoremap <leader>g. :GitGutterNextHunk<CR>
+nnoremap <leader>g, :GitGutterPrevHunk<CR>
+nnoremap <leader>gx :GitGutterUndoHunk<CR>
 
 nnoremap k gk
 nnoremap j gj

.config/nvim/plug.vim

@@ -2,6 +2,7 @@ call plug#begin()
 Plug 'gruvbox-community/gruvbox'
 Plug 'itchyny/lightline.vim'
 Plug 'scrooloose/nerdtree'
+Plug 'Xuyuanp/nerdtree-git-plugin'
 Plug 'prettier/vim-prettier'
 Plug 'tpope/vim-fugitive'
 Plug 'airblade/vim-gitgutter'