MCS-3669: Scene related tutorial and changelog. (#112)

Author: dariachen

content/en/SUMMARY.md

@@ -25,6 +25,7 @@
    * [7697 LED Control](tutorial/7697_led_control.md)
    * [7687 Build with GCC](tutorial/7687_build_with_gcc.md)
    * [7687 Light Switch GCC](tutorial/7687_light_switch_gcc.md)
+   * [Create your own scene](tutorial/create_your_own_scene.md)
 * [Setting user privilege](tutorial/setting_user_privilege.md)
 * [API references](api_references/README.md)
    * [Upload datapoint](api_references/upload_datapoint.md)

content/en/change_log/2.23.md

@@ -0,0 +1,7 @@
+# 2018/05/11
+
+Users are able to monitor the real-time data from multiple devices on one single Scene page.
+
+## New Features
+1. In device detailed page, you can view the real-time data from all data channels under this device. But what if you want to monitor the multiple devices at once? Now, you can compose your own **Scene** to monitor and control the devices in one single page. [more information](../tutorial/create_your_own_scene)
+

content/en/change_log/README.md

@@ -1,5 +1,11 @@
 # MCS Change log Summary
 
+## 2018/05/11
+
+### v2.23
+
+[Users are able to monitor the real-time data from multiple devices ion one single Scene page.](./2.23)
+
 ## 2017/12/28
 
 ### v2.22