Update README.adoc

Author: source-c

README.adoc

@@ -10,7 +10,7 @@ It is mainly developed for 0.10.0.1 and 0.10.1.0.
 
 image:https://img.shields.io/clojars/v/net.tbt-post/clj-kafka-x.svg[]
 
-ATTN: v0.4.0 may be partially (ot even fully!) incompatible with some versions of other libraries that use NIO!
+CAUTION: `v0.4.0` may be partially (ot even fully!) incompatible with some versions of other libraries that use NIO!
 
 == Installation
 
@@ -114,7 +114,7 @@ $ lein install
 
 == License
 
-Copyright © 2016-2018
+Copyright © 2016-2019
 
 Distributed under the
 http://www.apache.org/licenses/LICENSE-2.0[Apache License v 2.0]