docs: Updated docs for 2.0.0 version

docs/defaultEvents/npc/onNpcActionFinished.md

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+# `event` onNpcActionFinished
+
+This event is triggered when NPC action was finished.
+
+Original: [onNpcActionFinished](https://gothicmultiplayerteam.gitlab.io/docs/0.3.0/script-reference/server-events/npc/onNpcActionFinished/)
+
+## Parameters
+* `dict` **kwargs**:
+    * `int` **npc_id**: the npc identifier.
+    * `int` **action_type**: the action type.
+    * `int` **action_id**: the unique action identifier.
+    * `bool` **result**: the result of finished action.
+
+## Usage
+```python
+import pyg2o as g2o
+        
+@g2o.event('onNpcActionFinished')
+async def onActionFinished(npc_id, action_type, action_id, result):
+    print(f'NPC {npc_id} finished action {action_type} with the result {result}.')
+```