Updated Specification Links (markdown)

Author: handrews

Specification-Links.md

@@ -18,6 +18,8 @@ Hyper-Schema: [draft-luff-json-hyper-schema-00](https://tools.ietf.org/html/draf
 
 ## Draft 5
 
+**Note:** Draft 5 was primarily a cleanup of Draft 4 and therefore does not have its own hyper-schema.  The Draft 4 hyper-schema should continue to be used until Draft 6, which will have a new hyper-schema, is available.
+
 Core: [draft-wright-json-schema-00](https://tools.ietf.org/html/draft-wright-json-schema-00) ([changes](https://tools.ietf.org/html/draft-wright-json-schema-00#appendix-B))
 
 Validation: [draft-wright-json-schema-validation-00](https://tools.ietf.org/html/draft-wright-json-schema-validation-00) ([changes](https://tools.ietf.org/html/draft-wright-json-schema-validation-00#appendix-B))