URL fix for Structured Field Values for HTTP (#244)

Update draft to RFC for Structured Field Values for HTTP

Author: freddieleeman

index.src.html

@@ -112,7 +112,7 @@ <h1>Reporting API</h1>
     text: session; url: dfn-session
     text: success; url: dfn-success
     text: trying; url: dfn-try
-spec: STRUCTURED-HEADERS; urlPrefix: https://httpwg.org/http-extensions/draft-ietf-httpbis-header-structure.html#
+spec: STRUCTURED-HEADERS; urlPrefix: https://www.rfc-editor.org/rfc/rfc8941.html#
   type: grammar
     text: sf-dictionary; url: section-3.2
 </pre>
@@ -126,7 +126,7 @@ <h1>Reporting API</h1>
   },
   "STRUCTURED-HEADERS": {
     "authors": [ "Mark Nottingham", "Poul-Henning Kamp" ],
-    "href": "https://httpwg.org/http-extensions/draft-ietf-httpbis-header-structure.html",
+    "href": "https://www.rfc-editor.org/rfc/rfc8941.html",
     "title": "Structured Field Values for HTTP",
     "publisher": "IETF"
   }