update readme; add bintray version badge

README.md

@@ -1,9 +1,24 @@
 # aerospike-client-scala
 [![Build Status](https://travis-ci.com/reugn/aerospike-client-scala.svg?branch=master)](https://travis-ci.com/reugn/aerospike-client-scala)
+[ ![Download](https://api.bintray.com/packages/reug/maven/aerospike-core/images/download.svg) ](https://bintray.com/reug/maven/aerospike-core/_latestVersion)
 
 Idiomatic and reactive Scala client for [Aerospike](https://www.aerospike.com/) database.
 
 ## Modules
 * `aerospike-core` provides standard Scala Future and Akka Streams implementation.
 * `aerospike-monix` integrates with [Monix](https://monix.io/) library to support Monix effects.
 * `aerospike-zio` integrates with [ZIO](https://zio.dev/) library to support ZIO effects.
+
+## Getting started
+Add bintray resolver:
+```scala
+resolvers += Resolver.bintrayRepo("reug", "maven")
+```
+Add aerospike-core module as a dependency in your project:
+```scala
+libraryDependencies += "com.github.reugn" %% "aerospike-core" % "<version>"
+```
+* replace `aerospike-core` with `aerospike-monix` or `aerospike-zio` if required.
+
+## License
+Licensed under the [Apache 2.0 License](./LICENSE).