Document new arming_states in manual alarm control panel (#33148)

Co-authored-by: Franck Nijhof <frenck@frenck.nl>

source/_integrations/manual.markdown

@@ -72,6 +72,11 @@ disarm_after_trigger:
   required: false
   type: boolean
   default: false
+arming_states:
+  description: Limit the supported arming states.
+  required: false
+  type: list
+  default: armed_away, armed_home, armed_night, armed_vacation, armed_custom_bypass
 armed_custom_bypass/armed_home/armed_away/armed_night/armed_vacation/disarmed/triggered:
   description: State specific settings
   required: false
@@ -132,6 +137,7 @@ be used for example to sound the siren for a shorter time during the night.
 
 In the configuration example below:
 
+- The only arming states allowed are `armed_away` and `armed_home`.
 - The `disarmed` state never triggers the alarm.
 - The `armed_home` state will leave no time to leave the building or disarm the alarm.
 - The other states will give 30 seconds to leave the building before triggering the alarm, and 20 seconds to disarm the alarm when coming back.
@@ -145,6 +151,9 @@ alarm_control_panel:
     arming_time: 30
     delay_time: 20
     trigger_time: 4
+    arming_states:
+      - armed_away
+      - armed_home
     disarmed:
       trigger_time: 0
     armed_home: