doc update

Author: huangshuwei

examples/src/docs/en/intro.md

@@ -5,7 +5,7 @@ Based on vue2.x flexible table components. [![npm](https://img.shields.io/npm/v/
 
 - Easy to use
 - Powerful
-- Unit test coverage greater than 80%
+- Unit test coverage greater than 85%
 
 ### Supports
 

examples/src/docs/zh/intro.md

@@ -5,7 +5,7 @@
 
 - 使用简单
 - 功能强大
-- 单元测试覆盖率大于 80%
+- 单元测试覆盖率大于 85%
 
 ### 功能