Fix typo in URL

Co-authored-by: elf Pavlik <[email protected]>

Author: michielbdejong

index.html

@@ -226,7 +226,7 @@ <h2 property="schema:name">Work Items</h2>
                   </tr>
                   <tr>
                     <td><a href="https://solid.github.io/erp/" rel="cito:citesForInformation" typeof="doap:Specification">Solid ERP</a></td>
-                    <td><a href="https://github.com/solid/erp">https://github.com/solid/chat</a></td>
+                    <td><a href="https://github.com/solid/erp">https://github.com/solid/erp</a></td>
                     <td>Working towards a first draft</td>
                   </tr>
                 </tbody>