Merge pull request #1013 from ssilverman/update-ecma-link

Fix ECMA-262 link

Author: Relequestual

jsonschema-core.xml

@@ -3296,7 +3296,7 @@ https://example.com/schemas/common#/$defs/count/minimum
             &RFC8259;
             &ldp;
             <reference anchor="ecma262"
-            target="https://www.ecma-international.org/ecma-262/11.0">
+            target="https://www.ecma-international.org/ecma-262/11.0/index.html">
                 <front>
                     <title>ECMA-262, 11th edition specification</title>
                     <author/>