Update README.md

Author: semoro

README.md

@@ -1 +1,10 @@
-# KotlinEvalSlackBot
+# KotlinEvalSlackBot
+
+Simple [Kotlin](http://kotlinlang.org) REPL bot for [Slack](https://slack.com)
+## Usage
+Detailed install and usage info on [Docker Hub](https://hub.docker.com/r/semoro/kesb/)
+
+## Contribution
+At first you can help project evalution by submitting security issues info.
+
+Fixes and PRs are also reviewed by [me](https://github.com/semoro) and accepted