Updated wording per feedback from initial review

doc/development/database_review.md

@@ -46,9 +46,11 @@ A database **reviewer**'s role is to:
 - Once satisfied, relabel the MR with ~"database::reviewed", approve it, and
   reassign MR to the database **maintainer** suggested by Reviewer
   Roulette.
+
+### When there are no Database Maintainers available
   - Currently we have a critical shortage of database maintainers.  If the database **reviewer** cannot find an available database **maintainer** then:
-  - Assign the MR to a second database **reviewer** for further review.
-  - Once satisfied with the review process, and if the database **maintainer** is still not available, reassign to a backend **maintainer**.
+    - Assign the MR to a second review  by a **database trainee maintainer** for further review.
+    - Once satisfied with the review process, and if the database **maintainer** is still not available, skip the database maintainer approval step and reassign to a backend **maintainer** to merge.
 
 A database **maintainer**'s role is to: