Adjust ROA definition

Author: RebeccaTamachiro

src/content/glossary/byoip.yaml

@@ -25,7 +25,7 @@ entries:
 
   - term: Route Origin Authorization (ROA)
     general_definition: |-
-      the cryptographically signed object used for Resource Public Key Infrastructure (RPKI) validation.
+      the RPKI-signed object that states an autonomous system (AS) is authorized to originate a particular IP address prefix or set of prefixes.
 
   - term: Unicast Reverse Path Forwarding (uRPF)
     general_definition: |-