Update spec/index.html

Co-authored-by: Ruben Taelman <[email protected]>

Author: afs

spec/index.html

@@ -5942,7 +5942,7 @@ <h5>sameValue</h5>
               </table>
             </div>
             <p id="sameValue-old-name" class="note">
-              This function was previously called `RDFterm-equal`.
+              This function was called `RDFterm-equal` up until SPARQL 1.1.
             </p>
           </section>