Update draft-ietf-oauth-attestation-based-client-auth.md

Author: tplooker

draft-ietf-oauth-attestation-based-client-auth.md

@@ -39,7 +39,7 @@ informative:
 
 --- abstract
 
-This specification defines an extension to the OAuth 2 protocol as defined in {{RFC6749}} which enables a Client Instance to include an attestation in interactions with an Authorization Server or a Resource Server. This new method enables Client Instances involved in a client deployment that is traditionally viewed as a public client, to be able to provide an attestation to an Authorization server or Resource Server in order to authenticate as a Client Instance.
+This specification defines an extension to the OAuth 2 protocol as defined in {{RFC6749}} which enables a Client Instance to include an attestation in interactions with an Authorization Server or a Resource Server. This new method enables Client Instances involved in a client deployment that is traditionally viewed as a public client, to be able to provide an attestation in order to authenticate.
 
 --- middle