Adding authorship to release announcements

It took some time and energy to make the release notes (which we credit in the full release notes) like we credit who tested the release, if it's being copied wholesale from the one I wrote, maybe nice to record that as well.

content/news/2022-08-galaxy-release-22-05/index.md

@@ -3,6 +3,7 @@ title: 'Galaxy Release 22.05'
 tease: New History, Storage Dashboard, Bulk History Operations, Deferred Datasets, OpenAPI & much more!
 date: '2022-08-23'
 subsites: [global, us]
+authors: Helena (@hexylena)
 ---
 
 Dear Community,