No-Vary-Search: tweak IANA Considerations

Fixes #3281.

Author: reschke

draft-ietf-httpbis-no-vary-search.md

@@ -459,27 +459,27 @@ This proposal is adjacent to the highly-privacy-relevant space of [navigational
 
 # IANA Considerations
 
-IANA should do the following:
 
 ## HTTP Field Names
 
-Enter the following into the Hypertext Transfer Protocol (HTTP) Field Name Registry:
+IANA is requested to enter the following into the Hypertext Transfer Protocol (HTTP) Field Name Registry (<https://www.iana.org/assignments/http-fields/http-fields.xhtml>):
 
-Field Name
+Field Name:
 : `No-Vary-Search`
 
-Status
+Status:
 : permanent
 
-Structured Type
+Structured Type:
 : Dictionary
 
-Reference
+Reference:
 : this document
 
-Comments
+Comments:
 : (none)
 
+
 --- back
 
 # Acknowledgments