anchor.diff:  
             map <C-u> <esc>:UndotreeToggle<CR>
   
  -          nmap <S-PageUp> :bprev<Return>
  -          imap <S-PageUp> <esc>:bprev<Return>
  -          nmap <S-PageDown> :bnext<Return>
  -          imap <S-PageDown> <esc>:bnext<Return>
  +          nmap <A-PageUp> :bprev<Return>
  +          imap <A-PageUp> <esc>:bprev<Return>
  +          nmap <A-PageDown> :bnext<Return>
  +          imap <A-PageDown> <esc>:bnext<Return>
   
             nmap <C-PageUp> :bprev<Return>
             imap <C-PageUp> <esc>:bprev<Return>
  
positive.code: 
            autocmd FileType markdown set spell spelllang=en_us
  
            let g:NERDTreeDirArrowExpandable = '▸'
            let g:NERDTreeDirArrowCollapsible = '▾'
  
  
negative.code:           syntax enable
            set termguicolors
            set title
            function! ProjectName()
              return substitute( getcwd(), '.*\/\([^\/]\+\)', '\1', ''' )
            endfunction
            set titlestring=%t%(\ %M%)%(\ (%{expand(\"%:~:.:h\")})%)\ \-\ %{ProjectName()}%(\ %a%)
            colorscheme monokai_pro
  
            set shell=sh
  