Update Toki Iti admin portal v2.20.md

Author: Nness

Toki_Iti/releases/admin/v2.20.md

@@ -4,3 +4,4 @@
 - **ADDED** Introduced global category restriction settings for the TECH portal.
 - **ADDED** Customers can now assign queue-specific statuses with soft restrictions, including setting a default status for each queue.
 - **ADDED** Service Type ticket automation now respects queue-specific status configurations.
+- **IMPROVED** Queue-specific status configurations now require at least one open status and one closed status.