Simplify note about supported SQLAlchemy versions

Author: hashhar

README.md

@@ -59,7 +59,8 @@ rows for example `Cursor.fetchone()` or `Cursor.fetchmany()`. By default
 
 **Compatibility**
 
-`trino.sqlalchemy` is compatible with 1.3.x and 1.4.x SQLAlchemy versions. Unit and integrations tests against latest versions of both versions.
+`trino.sqlalchemy` is compatible with the latest 1.3.x and 1.4.x SQLAlchemy
+versions at the time of release of a particular version of the client.
 
 **Installation**