vim: add PaperColor

vimrc

@@ -15,6 +15,7 @@ call plug#begin('~/.vim/plugged')
 
     Plug 'janko/vim-test'
 
+    Plug 'NLKNguyen/papercolor-theme'
     Plug 'vim-airline/vim-airline'
     Plug 'vim-airline/vim-airline-themes'
     Plug 'dracula/vim', { 'as': 'dracula' }
@@ -89,6 +90,7 @@ nnoremap <C-L>  viwu
 
 nnoremap <leader>td :colorscheme dracula<CR>
 nnoremap <leader>ts :colorscheme solarized8<CR>
+nnoremap <leader>tp :colorscheme PaperColor<CR>
 nnoremap <leader>bd :set background=dark<CR>
 nnoremap <leader>bl :set background=light<CR>