change readme

Author: ouki-wang

README.md

@@ -1,53 +1,47 @@
 Grove - LCD RGB Backlight
 ---------------------------------------------------------
 
-<br>
 ### Change Color of Backlight
 One of Grove - LCD RGB Backlight's most important feature is changing the backlight color. It's very simple; just use the folowing function:
 
     void setRGB(int r, int g, int b);
 
 
-<br>
 ### Clear display
 
 You can clear the display by this function:
 
     void clear();
 
-<br>
+
 ### Turn on and turn off display
 
     void noDisplay();			// turn off display
     void display();				// turn on display
 
-<br>
 ### Blink
 
     void stopBlink();
     void blink();
 
-<br>
 ### Cursor
 
     void noCursor();
     void cursor();
 
-<br>
 ### Blink LED Backlight
 
     void blinkLED();
     void noBlinkLED();
 
 
-<br>
- * @n [Get the module here](等上架后添加商品购买链接)
- * @n This example Set the volume size and play music snippet.
- * @n [Connection and Diagram](等上架后添加wiki链接)
- *
- * Copyright	[DFRobot](http://www.dfrobot.com), 2016
- * Copyright	GNU Lesser General Public License
- *
- * @author [yangyang](971326313@qq.com)
- * version  V1.0
- * date  2017-2-10
+* @n [Get the module here](等上架后添加商品购买链接)
+* @n This example Set the volume size and play music snippet.
+* @n [Connection and Diagram](等上架后添加wiki链接)
+*
+* Copyright	[DFRobot](http://www.dfrobot.com), 2016
+* Copyright	GNU Lesser General Public License
+*
+* @author [yangyang](971326313@qq.com)
+* version  V1.0
+* date  2017-2-10