docs: update new API to doc, add major changlog

README.md

@@ -112,12 +112,20 @@ grouped_lights = hue.grouped_lights
 
 for group in grouped_lights:
     print(group.type)
-    group.on = True
+    # group.on = True
+    group.set_state(True, 100, None) # Feature in 
+    group.set_state(on_state_value=True, brightness=100, duration_ms=1)
+
 ```
 
 ## Low Level Control
 
-Also, you can use basic function in bridge class.
+> Low level function may be changed when update
+
+You can use some basic functions in this library. 
+
+For example, you can use `get_lights`,`set_light` or other low level control functions to implement
+some custom functions.
 
 ```python
 import time
@@ -137,6 +145,8 @@ bridge.get_zones()
 
 Some API may be de deprecated When major version updates.
 
+- Grouped light API will be changed after version `2.0.0`
+
 ## TODO
 
 - Zones Control Class

src/python_hue_v2/__about__.py

@@ -1 +1 @@
-__version__ = '1.0.3'
+__version__ = '2.0.0'

src/python_hue_v2/grouped_light.py

@@ -19,6 +19,7 @@ class GroupedLight:
     """API to manage grouped light service, just one group
     Only supports HTTP PUT and GET method.
     """
+
     def __init__(self, bridge: Bridge, grouped_light_id: str):
         self.bridge = bridge
         self.grouped_light_id: str = grouped_light_id
@@ -50,8 +51,14 @@ def on(self) -> bool:
     def on(self, value: bool):
         self._set({'on': {'on': value}})
 
-    def set_state(self, value: bool, brightness: float = None, duration_ms: int = None):
-        properties = {'on': {'on': value}}
+    def set_state(self, on_state_value: bool, brightness: float = None, duration_ms: int = None):
+        """
+        Set the state of the grouped light
+        :param on_state_value: Boolean value to change the state of the grouped light
+        :param brightness: Group light brightness value
+        :param duration_ms: duration in dynamics
+        """
+        properties = {'on': {'on': on_state_value}}
         if duration_ms:
             properties['dynamics'] = {'duration': duration_ms}
         if brightness: