README.md in iqvoc-4.12.0 vs README.md in iqvoc-4.12.1

@@ -50,10 +50,20 @@
 
 `heroku open` opens your app in the browser.
 
 Remember to visit the Users section and change the default passwords!
 
+### Docker
+
+If you want to try iQvoc using Docker just clone this repository and run:
+
+```
+$ docker-compose up
+```
+
+This Setup uses Postgres as a database. Please make sure that your Docker daemon is running and that you have docker-compose installed. User credentials can be found in https://github.com/innoq/iqvoc/blob/master/db/seeds.rb.
+
 ### Custom
 
 We recommend running [iQvoc as a Rails engine](https://github.com/innoq/iqvoc/wiki/iQvoc-as-a-Rails-Engine).
 Running the cloned source code is possible but any modifications would require a
 fork.
@@ -86,11 +96,10 @@
 $ rake jobs:workoff
 ```
 
 ## Compatibility
 
-iQvoc is fully compatible with Ruby 1.9, 2.0, 2.1 and JRuby 1.7
-(in Ruby 1.9-mode).
+iQvoc is fully compatible with Ruby 2.2, 2.3 and 2.4.
 
 ## Customization
 
 There are many hooks providing support for your own classes and configuration.
 The core app also works as a Rails Engine. The config residing in `lib/iqvoc.rb`