Merge pull request #2 from giannisdoukas/dev

improve documentation

README.md

@@ -2,5 +2,22 @@
 
 [![Build Status](https://travis-ci.com/giannisdoukas/CWLJNIKernel.svg)](https://travis-ci.com/giannisdoukas/CWLJNIKernel)
 [![Coverage Status](https://coveralls.io/repos/github/giannisdoukas/CWLJNIKernel/badge.svg?t=AHSikx)](https://coveralls.io/github/giannisdoukas/CWLJNIKernel)
+[![Gitter chat](https://badges.gitter.im/CWLJNIKernel/gitter.png)](https://gitter.im/CWLJNIKernel/community)
 
-`Currently windows are not supported`
+
+This is a jupyter notebook kernel which enables running Common Workflow Language. It uses 
+[cwltool](https://github.com/common-workflow-language/cwltool) as the execution engine. The goal of the kernel is to 
+improve the human-in-the-loop interaction. The goal of the kernel is to improve human-in-the-loop by improving the 
+following:
+* Documenting the workflow
+* Enable the developer to execute a workflow with multiple steps splited in multiple JN cells
+* Enable the user to execute multiple workflows stitched together
+* Ensembl workflows
+    * Run the same workflow many times over different datasets or with different settings over the same data sets
+    * Run different workflows over the same datasets
+
+`Currently windows are not supported`
+
+## How to contribute
+If you are a CWL developer and you would like to contribute feel free to open an issue and ask for new features you 
+would like to see.