vim: add goyo, limelight, zenroom2

vimrc

@@ -37,6 +37,9 @@ call plug#begin('~/.vim/plugged')
     Plug 'moll/vim-bbye'
     Plug 'mhinz/vim-startify'
     Plug 'AndrewRadev/tagalong.vim'
+    Plug 'junegunn/goyo.vim'
+    Plug 'junegunn/limelight.vim'
+    Plug 'amix/vim-zenroom2'
 
     if version >= 800
         Plug 'neoclide/coc.nvim', {'branch': 'release'}
@@ -661,5 +664,9 @@ filetype plugin indent on
 
 nnoremap <C-S-Right> :cn<CR>
 nnoremap <C-S-Left> :cp<CR>
+nnoremap <leader>z  :Goyo<CR>
+" nmap ,l <Plug>(Limelight)
+" xmap ,l <Plug>(Limelight)
+nmap ,l :Limelight!!<CR>
 
 set textwidth=120