Update index.html

public/index.html

@@ -61,7 +61,7 @@
         </div>
         <div class="footer text-center mt-4 bg-green">
             <a href="opendata/"> #opendata - serie annuali  </a>&nbsp;
-            &bullet;&nbsp;<a href="https://git.fluidware.it/milanoscaloromana/fcub/" target="_blank"> #Readme + sources</a>
+            &bullet;&nbsp;<a href="https://git.fluidware.it/milanoscaloromana/pm/blob/master/README.md" target="_blank"> #Readme + sources</a>
         </div>
         <!-- Optional JavaScript -->
         <!-- jQuery first, then Popper.js, then Bootstrap JS -->