Add new lighting scenes to living room configuration

- Introduced two new scenes: Living_Room_Daytime_Cool with 5500K cool white settings and Living_Room_Evening_Amber with 2700K warm amber settings.
- Updated README.md to reflect the new scenes and their descriptions, enhancing clarity on lighting options available for automations.

config/scene/living_room.yaml

@@ -57,3 +57,65 @@
           state: on
           rgb_color: *red  
           brightness: 255
+
+- name: Living_Room_Daytime_Cool
+  entities:
+      light.m1_front_left:
+          state: on
+          kelvin: 5500
+          brightness: 255
+      light.m1_front_right:
+          state: on
+          kelvin: 5500
+          brightness: 255
+      light.m1_back_right:
+          state: on
+          kelvin: 5500
+          brightness: 255
+      light.m1_back_left:
+          state: on
+          kelvin: 5500
+          brightness: 255
+      light.tv_stand_light:
+          state: on
+          kelvin: 5500
+          brightness: 200
+      light.tv_light:
+          state: on
+          kelvin: 5500
+          brightness: 200
+      light.couch_1:
+          state: on
+          kelvin: 5500
+          brightness: 255
+
+- name: Living_Room_Evening_Amber
+  entities:
+      light.m1_front_left:
+          state: on
+          kelvin: 2700
+          brightness: 200
+      light.m1_front_right:
+          state: on
+          kelvin: 2700
+          brightness: 200
+      light.m1_back_right:
+          state: on
+          kelvin: 2700
+          brightness: 200
+      light.m1_back_left:
+          state: on
+          kelvin: 2700
+          brightness: 200
+      light.tv_stand_light:
+          state: on
+          kelvin: 2700
+          brightness: 170
+      light.tv_light:
+          state: on
+          kelvin: 2700
+          brightness: 170
+      light.couch_1:
+          state: on
+          kelvin: 2700
+          brightness: 220