docs: update README

Author: juzhiyuan

README.md

@@ -32,7 +32,7 @@
 
 - The master version should be used with Apache APISIX master version.
 
-- The latest released version is [2.7.1](https://apisix.apache.org/downloads/) and would better be used with [Apache APISIX 2.7](https://apisix.apache.org/downloads/).
+- The latest released version is [2.7.1](https://apisix.apache.org/downloads/) and is compatible with [Apache APISIX 2.7](https://apisix.apache.org/downloads/).
 
 ## What's Apache APISIX Dashboard