docs: Add npc rotate command and inverted need_permission

docs/src/fancynpcs/commands/npc.md

@@ -177,6 +177,13 @@ Teleports NPC to specified location.
 - **Syntax**:  `/npc move_to (npc) (x) (y) (z) [world] [--look-in-my-direction]`
 - **Permissions**: `fancynpcs.command.npc.move_to`
 
+### Rotate npc
+
+Sets the yaw and pitch of the specified NPC.
+
+- **Syntax**:  `/npc rotate (npc) (yaw) (pitch)`
+- **Permissions**: `fancynpcs.command.npc.rotate`
+
 ### Center npc location
 
 Centers the NPC to the specified location.

docs/src/fancynpcs/tutorials/action-system.md

@@ -122,6 +122,10 @@ Syntax: `need_permission (permission)`
 
 Example: `/npc action (npc) (trigger) add need_permission my.cool.permission`
 
+!!!info
+If you add the `!` prefix to the permission, the action will be inverted. This means that the action list will be canceled if the player has the permission.
+!!!
+
 ### play_sound
 
 Plays a sound to the player. This action is useful for creating audio feedback for the player when interacting with the NPC.