title: How to use a Git repository with multiple projects?
body: <p>I'm new to Github. Was unable to find a tutorial regarding this.</p>
  
  <ul>
  <li>I have a repository <code>core-repository</code>, which contains core modules of all my projects. </li>
  <li><p>If I were to make changes in the <code>core-repository</code>, it has to affect all its dependent projects. </p></li>
  <li><p>These projects are individual repositories, with <code>core-repository</code> as part of them.</p></li>
  </ul>
  
  <p>How to implement this? </p>
  
  <pre>
  core-modules/
      module1/
      module2/
  
  project1/
      folder1/
          core-modules/
              module1/
              module2/
  </pre>
  
  <p>Note: Please comment before downvoting. As well point towards a valid solution.</p>