docs: Updated docs for 2.0.0 version

docs/defaultEvents/general/onExit.md

@@ -0,0 +1,17 @@
+# `event` onExit
+This event is triggered when server is going to shut down.
+You can use it, to save some data before closing up, or do something else.
+
+Original: [onExit](https://gothicmultiplayerteam.gitlab.io/docs/0.3.0/script-reference/server-events/general/onExit/)
+
+## Parameters
+No parameters.
+
+## Usage
+```python
+import pyg2o as g2o
+        
+@g2o.event('onExit')
+async def onExitEvt():
+    print('Bye')
+```