anchor.diff:        </div>
         <div class="contents menu">
           <a href="#overview">Overview</a>
  -        <a href="#installation">Installation and Usage</a>
  +        <a href="#installation">Installation</a>
  +        <a href="#usage">Usage</a>
           <a href="#language">Language Reference</a>
           <a href="#literals">Literals: Functions, Objects and Arrays</a>
           <a href="#lexical_scope">Lexical Scoping and Variable Safety</a>
  
positive.code: 
      <h2>
        <span id="installation" class="bookmark"></span>
        Installation and Usage
      </h2>
  
      <p>
  
negative.code:       just like to experiment, you can try the 
        <a href="https://github.com/alisey/CoffeeScript-Compiler-for-Windows">CoffeeScript Compiler For Windows</a>.
      </p>
  
      <h2>
        <span id="usage" class="bookmark"></span>
        Usage
      </h2>
  
      <p>
        Once installed, you should have access to the <tt>coffee</tt> command,
  