docs: Updated docs for 2.0.0 version

docs/defaultEvents/player/onPlayerChangeFocus.md

@@ -0,0 +1,22 @@
+# `event` onPlayerChangeFocus
+This event is triggered when player targets another player.
+
+Original: [onPlayerChangeFocus](https://gothicmultiplayerteam.gitlab.io/docs/0.3.0/script-reference/server-events/player/onPlayerChangeFocus/)
+
+## Parameters
+* `dict` **kwargs**:
+    * `int` **playerid**: the id of the player which changes the focus.
+    * `int` **oldFocusId**: the old playerid targeted by the player. Can be `-1` if player wasn't targeting other player.
+    * `int` **newFocusId**:  the new playerid targeted by the player. Can be `-1` if player doesn't target anyone.
+    
+## Usage
+```python
+import pyg2o as g2o
+        
+@g2o.event('onPlayerChangeFocus')
+async def onChangeFocus(playerid, oldFocusId, newFocusId):
+    if newFocusId != -1:
+        print(f'Player {playerid} is looking at {newFocusId}')
+    else
+        print(f'Player {playerid} is looking at... who?')
+```