Update README.md

Author: jiangnan

README.md

@@ -45,6 +45,7 @@ Elasticsearch-SQL
 **7.3.1** [![7.3.1 Build Status](https://travis-ci.org/iamazy/elasticsearch-sql.svg?branch=7.3.1)](https://travis-ci.org/iamazy/elasticsearch-sql)
 **7.3.2** [![7.3.2 Build Status](https://travis-ci.org/iamazy/elasticsearch-sql.svg?branch=7.3.2)](https://travis-ci.org/iamazy/elasticsearch-sql)<br/>
 **7.4.0** [![7.4.0 Build Status](https://travis-ci.org/iamazy/elasticsearch-sql.svg?branch=7.4.0)](https://travis-ci.org/iamazy/elasticsearch-sql)
+**7.4.1** [![7.4.1 Build Status](https://travis-ci.org/iamazy/elasticsearch-sql.svg?branch=7.4.1)](https://travis-ci.org/iamazy/elasticsearch-sql)
 
 ## Description
 rewrite [elasticsearch-sql2](https://github.com/iamazy/elasticsearch-sql2) with **antlr4**