Update documentation

README.md

@@ -9,20 +9,20 @@
 [中文文档](README_CN.md)
 
 ## Contents
-* Overview
-* Conditions of Use
-* Import SDK
-* permission settings
-* Start access
-* scan the device, stop scanning the device, check the scan status
-* connect the device, disconnect the device
-* Successful connection, accept the data returned by the scale
-* Call the algorithm to calculate the data in the SDK
-* Give instructions to the device
-* Class description
-* Version History
-* FAQ
-* Contact Us
+- Overview
+- Conditions of Use
+- Import SDK
+- permission settings
+- Start access
+- scan the device, stop scanning the device, check the scan status
+- connect the device, disconnect the device
+- Successful connection, accept the data returned by the scale
+- Call the algorithm to calculate the data in the SDK
+- Give instructions to the device
+- Class description
+- Version History
+- FAQ
+- Contact Us
 
 ## Overview
 - What is elink body fat scale SDK?