title: SVN:externals equivalent in Git?
body: <p>I have two SVN projects in use from another SVN repository using <a href="http://svnbook.red-bean.com/en/1.0/ch07s03.html" rel="noreferrer">svn:externals</a>. </p>
  
  <p>How can I have the same repository layout structure in Git?</p>