Jul 9 - Update the 'Handled by' more clear and understandable

docs/manual_updates_customer.md

@@ -68,9 +68,9 @@ notified immediately. You'll see a confirmation message when it's received.
 When you view an issue, it now shows **Handled By**, indicating who is
 responsible for resolving it:
 
-- **Our Staff** — a member of the janitorial quality-control team.
-- **Facility Staff** — the facility's own on-site staff are handling it.
-- **External Vendor** — an outside contractor has been engaged.
+- **Janitorial Staff** — our janitorial crew handles it.
+- **Facility Staff** — the facility's own on-site staff handle it.
+- **External Vendor** — an outside contractor handles it.
 
 In every case, one of our team members remains the **follow-up owner** who
 verifies the work and updates the issue. You do not set this field — it is