Update docs/openapi.yml

Co-authored-by: ccostino <ccostino@users.noreply.github.com>

Author: alexjanousekGSA

docs/openapi.yml

@@ -570,7 +570,7 @@ paths:
                 reference:
                   type: string
             example:
-              phone_number: "202-867-5309"
+              phone_number: "800-555-0100"
               template_id: "85b58733-7ebf-494e-bee2-a21a4ce17d58"
               personalisation:
                 variable: "value"