title: I Can't work with NERDCommenter
body: <p>I installed NerdCommenter like how it should be installed. And I read the help files. So, for commenting a line I need to do <code>&lt;leader&gt;c$</code>. </p>
  
  <p>I also read that the leader key is <code>\</code> by default. But it didn't work for me. I never used the leader key so I think I am doing something wrong.</p>
  
  <p>Can anybody help me for using the basic commenting and uncommenting selected lines using nerdcommenter?</p>