Moving community stuff to community.md

Readme.md

@@ -23,20 +23,6 @@ The [current state of development](https://github.com/maths/moodle-qtype_stack/b
 The [documentation is here](https://github.com/maths/moodle-qtype_stack/blob/master/doc/en/index.md), including the [installation instructions](https://github.com/maths/moodle-qtype_stack/blob/master/doc/en/Installation/index.md).
 
 
-## Community
-
-### Exchange of questions
-There is a database of STACK-question at https://db.ak-mathe-digital.de/domain. Right now there are over 400 STACK-questions, in many different languages. A filter simplifies the search for specific questions. Questions can easily be exported as xml-files and as such can be used in moodle as well as in ILIAS. Everybody can contribute their own questions. 
-
-### Meetings
-The 1st international STACK Conference took place on the 15th and 16th of November 2018 in Fürth at the Friedrich-Alexander-Universität Erlangen-Nürnberg. Further information and slides at https://www.stack-konferenz.de/.
-
-### Groups
-Groups of people who use STACK. You are welcome to join, ask questions and participate.
-* [SIG Mathe+ILIAS](https://docu.ilias.de/goto.php?target=grp_5183)
-* [Arbeitskreis Digitale Mathematik-Aufgaben in der Hochschullehre](http://www.ak-mathe-digital.de)
-
-
 ## License
 
 Stack is Licensed under the [GNU General Public, License Version 3](https://github.com/maths/moodle-qtype_stack/blob/master/COPYING.txt).