新增 CockroachDB, ManticoreSearch, PosgGIS 的支持说明

https://github.com/Tencent/APIJSON#--apijson

Author: TommyLemon

README.md

@@ -30,6 +30,7 @@ This source code is licensed under the Apache License Version 2.0 <br/>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/DuckDB"><img src="https://img.shields.io/badge/DuckDB-1.1%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/APIJSON-Java-Server/APIJSONBoot-MultiDataSource"><img src="https://img.shields.io/badge/SurrealDB-2.0%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/ClickHouse"><img src="https://img.shields.io/badge/ClickHouse-21.1%2B-brightgreen.svg?style=flat"></a>
+  <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/PostgreSQL"><img src="https://img.shields.io/badge/PostGIS-3.5%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/APIJSON-Java-Server/APIJSONDemo-MultiDataSource-Elasticsearch"><img src="https://img.shields.io/badge/Elasticsearch-7.17%2B-brightgreen.svg?style=flat"></a>
   <a href="https://github.com/APIJSON/APIJSON-Demo/tree/master/Manticore"><img src="https://img.shields.io/badge/ManticoreSearch-7.4%2B-brightgreen.svg?style=flat"></a>
   <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>