polish linkages

index.bs

@@ -2428,10 +2428,10 @@ needs.
 ## Feature Policy integration ## {#sctn-feature-policy}
 
 This specification defines a [=policy-controlled feature=] identified by
-the string "<code><dfn data-lt="payment-feature">webauthn</dfn></code>".
+the string "<code><dfn data-lt="webauthn-feature">webauthn</dfn></code>".
 Its [=default allowlist=] is '<code>self</code>'. [[!Feature-Policy]]
 
-A {{Document}}'s [=Document/feature policy=] determines whether any content in that document is allowed
+A {{Document}}'s [=Document/feature policy=] determines whether any content in that <a href="https://html.spec.whatwg.org/multipage/dom.html#documents">document</a> is allowed
 to successfully invoke the [=Web Authentication API=]&mdash;i.e.,
 {{CredentialsContainer/create()|navigator.credentials.create({"publicKey"})}} and
 {{CredentialsContainer/get()|navigator.credentials.get({"publicKey"})}}.