Update automation-announcements.md

Added an item for Transition Bulletin #13

Author: rroberge

automation-announcements.md

@@ -5,6 +5,8 @@ layout: page
 
 Links to updates and announcements about the [CVE Services v2.1](https://github.com/CVEProject/cve-services) and [CVE JSON v5.0](https://github.com/CVEProject/cve-schema/blob/master/schema/v5.0/CVE_JSON_5.0_schema.json) transition are included below. Please [contact us](https://cveform.mitre.org/) with any comments or questions.
 
+### [Moving Forward on CVE Service/CVE JSON 5.0 Adoption - Transition Bulletin #13](https://cveproject.github.io/automation-transition#bulletin-number-13) 
+CVE Services Website | December 22, 2022
 
 ### [CVE Services Workshop Videos Now Available - Transition Bulletin #12](https://cveproject.github.io/automation-transition#bulletin-number-12) 
 Main CVE Website | November 15, 2022