Fix readme

Author: acogoluegnes

README.md

@@ -38,6 +38,6 @@ Files are then in the `target` directory.
 
 ## License
 
-This package, the RabbitMQ Java client library, is triple-licensed under
+This package, the RabbitMQ Performance Testing Tool library, is triple-licensed under
 the Mozilla Public License 1.1 ("MPL"), the GNU General Public License
 version 2 ("GPL") and the Apache License version 2 ("ASL").