add and correct description/documentation

README.md

 Galaxy CWL IS Docker
+====================
 
-build: 
+This repository contains the material to build a Galaxy test server for the ELIXIR Workflow Interoperability Implementation Study.
+
+It can be used to test the different CWL tools and workflows developed in the context of the [Enabling the reuse, extension, scaling, and reproducibility of scientific workflows (2018-cwl) implementation study](https://elixir-europe.org/about-us/implementation-studies/cwl-2018).
+The source of the CWL tools and workflows is available on the [ELIXIR Workflow Implementation Study CWL descriptions github repository](https://github.com/EBI-Metagenomics/workflow-is-cwl/).
+
+The preconfigured admin user for this server is `galaxy@commonwl.org`, its password is `galaxy`.
+
+**This material is for demonstration purposes only, DO NOT USE IT IN PRODUCTION, it is not safe and stable enough!**
+
+How to build: 
 
 ```bash
 docker build . -t galaxycwlis
 ```
 
-run server locally: 
+How to run the server locally: 
 
 ```bash
 docker run --privileged -i -t -p 8080:8080 galaxycwlis:latest
 ```
 
-open terminal in server: 
+How to open a terminal on the server: 
 
 ```bash
 docker container ls
 
-docker exec -i -t [CONTAINER_NAME] /bin/bash
+docker exec -i -t [CONTAINER_NAME] bash
 ```

welcome.html

@@ -25,7 +25,7 @@
         </div>
       </div>
       <div class="alert alert-info" role="alert">
-        The preconfigured admin user for this server is <tt>galaxy@commonwl.org</tt>, it password is <tt>galaxy</tt>
+        The preconfigured admin user for this server is <tt>galaxy@commonwl.org</tt>, its password is <tt>galaxy</tt>
       </div>
       <div class="alert alert-danger" role="alert">
         This server is for demonstration purposes only, <b>DO NOT USE IT IN PRODUCTION</b>, it is not safe and stable enough!