Clarify that |extensions| in authenticator ops is a CBOR map

index.bs

@@ -2290,8 +2290,8 @@ It takes the following input parameters:
     these are known to the authenticator, it should not create a new credential. |excludeCredentialDescriptorList| contains a 
     list of known credentials.
 : |extensions|
-:: A [=map=] from [=extension identifiers=] to their [=authenticator extension inputs=], created by the client based on the
-    extensions requested by the [=[RP]=], if any.
+:: A [=CBOR=] [=map=] from [=extension identifiers=] to their [=authenticator extension inputs=], created by the client based on
+    the extensions requested by the [=[RP]=], if any.
 
 Note: Before performing this operation, all other operations in progress in the [=authenticator session=] MUST be aborted by 
 running the [=authenticatorCancel=] operation.
@@ -2399,8 +2399,8 @@ It takes the following input parameters:
 : |requireUserVerification|
 :: The [=effective user verification requirement for assertion=], a Boolean value provided by the client.
 : |extensions|
-:: A [=map=] from [=extension identifiers=] to their [=authenticator extension inputs=], created by the client based on the
-    extensions requested by the [=[RP]=], if any.
+:: A [=CBOR=] [=map=] from [=extension identifiers=] to their [=authenticator extension inputs=], created by the client based on
+    the extensions requested by the [=[RP]=], if any.
 
 Note: Before performing this operation, all other operations in progress in the [=authenticator session=] must be aborted by running the [=authenticatorCancel=] operation.