small tweaks

index.bs

@@ -450,13 +450,13 @@ key) and a [=platform authenticator=] (e.g., a built-in fingerprint sensor) such
     desktops) or on such [=client devices=] that lack a [=platform authenticator=], and
   - a low-friction means to strongly re-authenticate on [=client devices=] having [=platform authenticators=], or
   - a means to strong re-authenticate on [=client devices=] having [=passkey platform authenticators=] which do not support [=single-device credentials=]
-    (commonly referred to as a device-bound [=passkey=])
+    (commonly referred to as device-bound [=passkeys=])
 
 #### Registration #### {#sctn-usecase-workforce-sdc-reg}
 
 In this example, the user's employer mails a security key which is preconfigured with a device-bound [=passkey=].
 
-A temporary PIN was sent to the user out of band.
+A temporary PIN was sent to the user out of band (ex: via an RCS message).
 
 #### Authentication #### {#sctn-usecase-workforce-sdc-auth}
 
@@ -480,16 +480,13 @@ A variety of additional use cases and configurations are also possible, includin
 
 - A user navigates to example.com on their laptop, is guided through a flow to create and register a credential on their phone.
 
-- A user obtains a discrete, [=roaming authenticator=], such as a "fob" with USB or USB+NFC/BLE connectivity options, loads
+- A user obtains a discrete, [=roaming authenticator=], such as a security key with USB and/or NFC connectivity options, loads
     example.com in their browser on a laptop or phone, and is guided through a flow to create and register a credential on the
-    fob.
+    security key.
 
 - A [=[RP]=] prompts the user for their [=authorization gesture=] in order to authorize a single transaction, such as a payment
     or other financial transaction.
 
-
-
-
 ## Sample API Usage Scenarios ## {#sctn-sample-scenarios}
 
 [INFORMATIVE]