Added Readme.

Author: Aleksey Nikiforov

README.md

@@ -1,2 +1,13 @@
 # kpl-scala
-Kinesis Producer Library (KPL) Scala Wrapper
+A lightweight Scala wrapper around Kinesis Producer Library (KPL).
+
+The main benefit of this library is working with Scala-native Futures when
+interacting with KPL.
+
+## No Message Ordering
+Kinesis producer library **does not provide message ordering guarantees** at a reasonable throughput,
+see [this ticket](https://github.com/awslabs/amazon-kinesis-producer/issues/23) for more details.
+
+## Integration Tests
+This library is tested as part of [kcl-akka-stream](https://github.com/StreetContxt/kcl-akka-stream)
+integration tests.