title: Emacs :TODO indicator at left side
body: <p>I want to have sort of indiacator at left side of the line wherever I have in the source code</p>
  
  <p><strong>#TODO</strong>: some comment</p>
  
  <p>//TODO:  some comments</p>
  
  <p>The indicator could be a just mark and I already enabled line numbers displayed at emacs.</p>