新增对腾讯云数据库 TencentDB 的支持说明

https://cloud.tencent.com/product/cdb

Author: TommyLemon

README.md

@@ -28,6 +28,7 @@ This source code is licensed under the Apache License Version 2.0 <br/>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/Presto"><img src="https://img.shields.io/badge/Presto-0.277%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/Trino"><img src="https://img.shields.io/badge/Trino-400%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/MySQL"><img src="https://img.shields.io/badge/TDSQL-cloud-brightgreen.svg?style=flat"></a>
+  <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/MySQL"><img src="https://img.shields.io/badge/TencentDB-cloud-brightgreen.svg?style=flat"></a>
   <a ><img src="https://img.shields.io/badge/Snowflake-7.0%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/chenyanlann/APIJSONBoot_Hive"><img src="https://img.shields.io/badge/Hive-3.1.2%2B-brightgreen.svg?style=flat"></a>  
   <a href="https://github.com/chenyanlann/APIJSONBoot_Hive"><img src="https://img.shields.io/badge/Hadoop-3.1.3%2B-brightgreen.svg?style=flat"></a>