Update spec/index.html

Co-authored-by: Thomas Tanon <[email protected]>

spec/index.html

@@ -11806,7 +11806,7 @@ <h2>Changes between SPARQL 1.1 Query Language and SPARQL 1.2 Query Language</h2>
             Fix errata:
             <ul>
               <li><a href="https://www.w3.org/2013/sparql-errata#editorial-query-1">editorial-query-1</a>: Missing right parenthesis in <a href="#defn_evalGraph">Evaluation of Graph definition</a></li>
-              <li><a href="https://www.w3.org/2013/sparql-errata#editorial-query-2">editorial-query-1</a>: Missing space in <a href="#defn_algJoin">Join definition</a></li>
+              <li><a href="https://www.w3.org/2013/sparql-errata#editorial-query-2">editorial-query-2</a>: Missing space in <a href="#defn_algJoin">Join definition</a></li>
               <li><a href="https://www.w3.org/2013/sparql-errata#editorial-query-3">editorial-query-3</a>: Incorrect link for DELETE DATA in <a href="#grammarBNodes" class="sectionRef"></a></li>
               <li><a href="https://www.w3.org/2013/sparql-errata#clarification-query-1">clarification-query-1</a>: Fix explanation of IN and NOT IN in <a href="#func-in" class="sectionRef"></a> and <a href="#func-not-in" class="sectionRef"></a></li>
               <li><a href="https://www.w3.org/2013/sparql-errata#clarification-query-2">clarification-query-2</a>: Remove unneeded reference to the semantics above in <a href="#operatorExtensibility" class="sectionRef"></a></li>