Update README.md

Author: gingerhot

README.md

@@ -4,7 +4,7 @@ Dockerfile for Elasticsearch with IK Analysis plugin.
 
 The Dockerfile base is from: https://github.com/docker-library/elasticsearch , and I add the IK analysis plugin: https://github.com/medcl/elasticsearch-analysis-ik. 
 
-Elasticsearch version: 5.3.0
-IK analysis plugin version: current master(5.3.0)
+* Elasticsearch version: 5.3.0
+* IK analysis plugin version: current master(5.3.0)
 
 You can make a change in Dockerfile to match your requirement.