Update index.bs

Co-Authored-By: Emil Lundberg <emil@yubico.com>

index.bs

@@ -995,7 +995,7 @@ The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "S
     is a [=public key credential source=] that is <strong><em>discoverable</em></strong> and usable in [=authentication ceremonies=]
     where the [=[RP]=] does not provide any [=credential ID=]s,
     i.e., the [=[RP]=] invokes {{CredentialsContainer/get()|navigator.credentials.get()}}
-    with an <strong><em>[=list/is empty|empty=]</em></strong> {{PublicKeyCredentialRequestOptions/allowCredentials}} argument. This means that the [=[RP]=] does not necessarily need to first disambiguate the user.
+    with an <strong><em>[=list/is empty|empty=]</em></strong> {{PublicKeyCredentialRequestOptions/allowCredentials}} argument. This means that the [=[RP]=] does not necessarily need to first identify the user.
 
     As a consequence, a [=discoverable credential capable=] [=authenticator=] can generate an [=assertion signature=]
     for a [=discoverable credential=] given only an [=RP ID=],