message: [demo] Adds link to sourcecode
diff: @@ -27,7 +27,8 @@ const DescriptionPanel: FC = () => {
  </p>
  <p>
  This web application has been developed by <a href="https://www.ouestware.com/en/">OuestWare</a>, using{" "}
  - <a href="https://reactjs.org/">react</a> and <a href="https://sigmajs.org">sigma.js</a>.
  + <a href="https://reactjs.org/">react</a> and <a href="https://sigmajs.org">sigma.js</a>. You can read the source
  + code <a href="https://github.com/jacomyal/sigma.js/tree/main/demo">on GitHub</a>.
  </p>
  <hr />
  <p>
  