Document pre-requisites

Author: acogoluegnes

src/docs/asciidoc/index.adoc

@@ -13,7 +13,8 @@ for RabbitMQ implements the JMS specification on top of the
 link:https://rabbitmq.com/api-guide.html[RabbitMQ Java client], thus allowing new and
 existing JMS applications to connect to RabbitMQ.
 
-The library supports JMS 2.0 as of 2.7.0 and JMS 3.0 as of 3.0.0.
+RabbitMQ JMS Client supports JMS 2.0 as of 2.7.0.
+It requires Java 8 or more.
 
 The plugin and the JMS client are meant to work and be used together.