Update README.md

Author: Heltec-Aaron-Lee

README.md

@@ -1,40 +1,35 @@
 # Heltec_ESP32 Library
 
-English | [简体中文](docs/getting_started_cn.md)
+English | [简体中文](http://www.heltec.cn/wifi_kit_install/)
 
 This library need work with ESP32 development enviroment.
 
 ## 1. Get Started
 
 #### Here is the way to get started
 
-*1.For MacOS*
-
+*For MacOS*
 git clone the library in your  Arduino,it is like  /Users/***/Documents/Arduino/Heltec_ESP32
 
-*2. For Windows*
-
+*For Windows*
 git clone the library in your  Arduino,it is like  C:\Users\***\Documents\Arduino\Heltec_ESP32
 
 
 ## 2. Example
-
 https://github.com/HelTecAutomation/Heltec_ESP32/tree/master/examples
 
 ## 3. API Reference
-
 https://github.com/HelTecAutomation/Heltec_ESP32/blob/master/src/heltec.h
 
 ## 4. H/W Reference
 
 ### PinoutDiagram
-https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/blob/master/PinoutDiagram/WIFI_LoRa_32_V2.pdf
+https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/tree/master/PinoutDiagram
+### Schematic Diagram
+https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/tree/master/SchematicDiagram
 
 
 #### Note:
 * ESP series chips are faster to download, please make sure to use the high-quality Micro USB cable, otherwise it will be easy to download.
-
-  
-
-* Before downloading the program, press the PRG button on the board to greatly increase the download success rate.
+[Summary of common problems](http://www.heltec.cn/summary-of-common-problems-in-wifi-kit-series-continuous-update/?lang=en)