Update spec.yaml

Co-authored-by: Giuseppe Lo Presti <[email protected]>

Author: mickenordin

spec.yaml

@@ -420,7 +420,7 @@ components:
               - protocol-object
               - invites
               - exchange-token
-              - rfc-http-sig
+              - http-sig
           example:
             - webdav-uri
             - protocol-object