title: vim mapping (vnormap), how to use
body: <p>I am brand new to VIM and wanted to use vim-jsbeautify <a href="https://github.com/maksimr/vim-jsbeautify" rel="nofollow">https://github.com/maksimr/vim-jsbeautify</a>. It calls for adding the following lines into the .vimrc file. </p>
  
  <pre><code>autocmd FileType javascript vnoremap &lt;buffer&gt;  &lt;c-f&gt; :call RangeJsBeautify()&lt;cr&gt;
  autocmd FileType html vnoremap &lt;buffer&gt; &lt;c-f&gt; :call RangeHtmlBeautify()&lt;cr&gt;
  autocmd FileType css vnoremap &lt;buffer&gt; &lt;c-f&gt; :call RangeCSSBeautify()&lt;cr&gt;
  </code></pre>
  
  <p>I looked at other map examples and they seem simple. But I'm not sure how multi-key mapping works. I am looking a simple explanation of what steps I need to take the beautify function. Do I need to use ":" in visual mode, am I using c-f or cr, is the "-" required, etc? Thanks!</p>