DOP-1128: adds path to rfc role to facilitate use (#163)

* DOP-1128: adds path to rfc role to facilitate use

Author: schmalliso

snooty/rstspec.toml

@@ -711,7 +711,7 @@ type = "text"
 
 [role.rfc]
 help = """Reference an IETF RFC."""
-type = "explicit_title"
+type = {link = "https://tools.ietf.org/html/%s"}
 
 [role.wikipedia]
 help = """Reference a Wikipedia page."""