Point footer to react branch

client/components/Footer.js

@@ -6,9 +6,9 @@ const Hero = (props) => {
             <div className="container">
                 <div className="content has-text-centered">
                 <p>
-                    <strong>Zesje</strong> by <a href="https://gitlab.kwant-project.org/zesje/zesje/project_members">the team</a>.
+                    <strong>Zesje</strong> by <a href="https://gitlab.kwant-project.org/zesje/zesje/graphs/react">the team</a>.
                     The source code is licensed <a href="https://spdx.org/licenses/BSD-3-Clause.html"> BSD 3 </a>
-                    and available <a href="https://gitlab.kwant-project.org/zesje/zesje"> here!</a>
+                    and available <a href="https://gitlab.kwant-project.org/zesje/zesje/tree/react"> here!</a>
                 </p>
                 </div>
             </div>