Fixes #233 Improve "Readme" to make clear the differences between Lea…

…p and Tumbleweed Ruby environment setup

Included references for Leap and Tumbleweed and also link to the official openSUSE Ruby packaging policy.

README.md

@@ -9,11 +9,26 @@ We hope you'll get involved! Read our [Contributors' Guide](https://github.com/o
 
 ## Installing dependencies in a (open)SUSE system
 
+We recommend the usage of Ruby 2.4 or higher for the development. 
+
+If you are an openSUSE Tumbleweed user, it comes with the latest Ruby releases as default so you can configure your environment doing: 
+
+```console
+zypper ref
+zypper in ruby ruby-devel rubygem-bundler nodejs gcc make libxml2-devel libxslt-devel
+```
+
+On openSUSE Leap 42.3 you will need to install the Ruby 2.4 environment doing:
+
 ```console
 zypper ref
-zypper in ruby ruby-devel rubygem-bundler gcc make libxml2-devel libxslt-devel
+zypper in ruby2.4 ruby2.4-devel ruby2.4-rubygem-bundler nodejs6 gcc make libxml2-devel libxslt-devel
 ```
 
+You can find more information about Ruby development and packaging on openSUSE distributions [here](https://en.opensuse.org/Ruby).
+
+
+
 ## Running the application locally
 
 Just for running it in development mode. If you are playing to deploy it in a