docs: Updated docs for 2.0.0 version

docs/defaultEvents/npc/onNpcDestroyed.md

@@ -0,0 +1,18 @@
+# `event` onNpcDestroyed
+
+This event is triggered when remote NPC is created.
+
+Original: [onNpcDestroyed](https://gothicmultiplayerteam.gitlab.io/docs/0.3.0/script-reference/server-events/npc/onNpcDestroyed/)
+
+## Parameters
+* `dict` **kwargs**:
+    * `int` **npc_id**: the id of the destroyed remote npc.
+
+## Usage
+```python
+import pyg2o as g2o
+        
+@g2o.event('onNpcDestroyed')
+async def onNpcDestroy(npc_id):
+    print(f'NPC {npc_id} has been destroyed.')
+```