Update README.md

Author: bkatwal

Diff for: README.md

@@ -1,5 +1,7 @@
 # kafka-solr-sink-connector
-This is simple Java based solr sink kafka connector, that takes json data from kafka topic and push to solr, uses solr cloud
+This is simple Java based solr sink kafka connector, that takes plain json data from kafka topic and push to solr, uses solr cloud.
+
+Note: for now only plain JSON data is supported and keep schemas.enable=false for value converter.
 
 Refer/Use configuration: <a href="https://github.com/bkatwal/kafka-solr-sink-connector/tree/master/config">config files</a>