Rename Draft 6 heading to comply with permalink (immutable) comment

Author: adamvoss

specification-links.md

@@ -8,9 +8,9 @@ layout: page
 * TOC
 {:toc}
 
-## Draft 6
+## Latest Snapshot
 
-Draft 6 is a work in progress.  You can [give feedback and get involved on GitHub](https://github.com/json-schema-org/json-schema-spec).
+The next draft (currently Draft 6) is a work in progress.  You can [give feedback and get involved on GitHub](https://github.com/json-schema-org/json-schema-spec).
 
  - Core: [jsonschema-core.xml](https://github.com/json-schema-org/json-schema-spec/blob/master/jsonschema-core.xml)
  - Validation: [jsonschema-validation.xml](https://github.com/json-schema-org/json-schema-spec/blob/master/jsonschema-validation.xml)