diff --git a/README.md b/README.md
index 3714e16120..8fce8e01f6 100644
--- a/README.md
+++ b/README.md
@@ -1,24 +1,29 @@
# EGroupware
-| Branch | Status | Tools | Usage |
-| ------ | ------ | ----- | ----- |
-| master | [![Build Status](https://travis-ci.org/EGroupware/egroupware.svg?branch=master)](https://travis-ci.org/EGroupware/egroupware) | | runs unit-tests after each commit |
-| 20.1 | [![Build Status](https://travis-ci.org/EGroupware/egroupware.svg?branch=20.1)](https://travis-ci.org/EGroupware/egroupware) | [![Scrutinizer CI](https://scrutinizer-ci.com/images/logo.png) scrutinizer](https://scrutinizer-ci.com/g/EGroupware/egroupware/) | runs static analysis on our codebase |
-| 19.1 | [![Build Status](https://travis-ci.org/EGroupware/egroupware.svg?branch=19.1)](https://travis-ci.org/EGroupware/egroupware) | | manual testing with unusual browser versions or platforms |
-### Default and prefered installation method for EGroupware is via your package manager:
+| Tools | Usage |
+| ----- | ----- |
+| | runs unit-tests after each commit |
+| [![Scrutinizer CI](https://scrutinizer-ci.com/images/logo.png) scrutinizer](https://scrutinizer-ci.com/g/EGroupware/egroupware/) | runs static analysis on our codebase |
+| | manual testing with unusual browser versions or platforms |
- https://software.opensuse.org/download.html?project=server%3AeGroupWare&package=egroupware-epl
+### Default and prefered installation method for EGroupware is via your Linux package manager:
-### Installing EGroupware 20.1 via Docker:
-EGroupware 20.1 can be installed via Docker, in fact the DEB/RPM packages also does that. Instructions on how to run EGroupware in Docker are in [doc/docker](https://github.com/EGroupware/egroupware/tree/20.1/doc/docker) subdirectory.
+* [Installation & Update instructions](https://github.com/EGroupware/egroupware/wiki/Installation-using-egroupware-docker-RPM-DEB-package)
+* [Distribution specific instructions](https://github.com/EGroupware/egroupware/wiki/Distribution-specific-instructions)
-### Installing EGroupware 19.1 via Docker:
-EGroupware 19.1 can be installed via Docker, in fact the DEB/RPM packages also does that. Instructions on how to run EGroupware in Docker are in [doc/docker](https://github.com/EGroupware/egroupware/tree/19.1/doc/docker) subdirectory.
+> Every other method (including a developer installation by cloning the repo) is way more complicated AND does not include all features, as part's of EGroupware are running in different containers, eg. the push-server!
+### Installing EGroupware 21.1 via Docker for non-Linux environments or not supported Linux distros:
+EGroupware 21.1 can be installed via Docker, in fact the DEB/RPM packages also does that. Instructions on how to run EGroupware in Docker are in our [Wiki](https://github.com/EGroupware/egroupware/wiki/Docker-compose-installation) and in [doc/docker](https://github.com/EGroupware/egroupware/tree/21.1/doc/docker) subdirectory.
-### Installing EGroupware development version:
+### Installing EGroupware development version via Docker:
+* this is the prefered developer installation, as it contains eg. a push-server container
+* https://github.com/EGroupware/egroupware/tree/master/doc/docker/development
+
+### Deprecated EGroupware development installation:
* install composer.phar from https://getcomposer.org/download/
-* optional: for minified JavaScript and CSS install nodejs and grunt
+* for JavaScript dependencies and build install nodejs and npm
+* optional: for minified CSS install grunt
```
apt/yum/zypper install nodejs
npm install -g grunt-cli