Mailing list link in README

README.md

@@ -143,15 +143,13 @@ public class Tutorial implements PlanAssembler, PlanAssemblerDescription {
 ## Support
 Don’t hesitate to ask!
 
-[Open an issue](https://github.com/dimalabs/ozone/issues/new) on github, if you need our help.
-
-We have a mailing list for our users: https://lists.tu-berlin.de/mailman/listinfo/stratosphere-users
+[Open an issue](https://github.com/dimalabs/ozone/issues/new) on Github, if you found a bug or need any help.
+We also have a [mailing list](https://groups.google.com/d/forum/ozone-dev) for both users and developers.
 
 
 ## Documentation
 
 There is our (old) [official Wiki](https://stratosphere.eu/wiki/doku).
-
 We are in the progress of migrating it to the [GitHub Wiki](https://github.com/dimalabs/ozone/wiki/_pages)
 
 Please make edits to the Wiki if you find inconsistencies or [Open an issue](https://github.com/dimalabs/ozone/issues/new) 
@@ -160,10 +158,9 @@ Please make edits to the Wiki if you find inconsistencies or [Open an issue](htt
 ## Fork and Contribute
 
 This is an active open-source project. We are always open to people who want to use the system or contribute to it. 
+Contact us if you are looking for implementation tasks that fit your skills.
 
-The development community lives on GitHub and our [mailing list](https://lists.tu-berlin.de/mailman/listinfo/stratosphere-dev (But we prefer github)
-
-We use the github Pull Request system for the development of Stratosphere. Just open a request if you want to contribute.
+We use the GitHub Pull Request system for the development of Stratosphere. Just open a request if you want to contribute.
 
 ### What to contribute
 * Bug reports