title: Composer init command - Change default author name
body: <p>This is for more understanding of the inner work of Composer and I didn't find any answer elsewhere on the Internet or even Composer documentation.</p>
  
  <p>When creating my <code>composer.json</code> file, I usually go with command line <code>composer init</code>, the <code>package</code> name is defaulted to my pc name and <code>vendor</code> to the current folder name. All is great.</p>
  
  <p>Now on <code>author</code>, it automatically uses <code>my name &lt;my Hotmail Account&gt;</code>. As far as I know those information are not stored anywhere on my computer. I only have one profile/user (only have one user which is admin with no detail of email or real name).</p>
  
  <p>I have GitHub installed, PHP, Ruby on Rails, XAMPP and don't have any Windows Live installed.</p>
  
  <p>Now, where does it take those information from? My best guess is from GitHub info, which is the only thing that have those info, but I would like to confirm it.</p>