diff --git a/README.md b/README.md
index f58392f49c..c17ed5a5d7 100644
--- a/README.md
+++ b/README.md
@@ -13,4 +13,9 @@
 * # add a line /path/to/egroupware/.mrconfig to your ~/.mrtrust, to allow running composer.phar and git clone -b 16.1
 * mr up
 * # enable further / non-default EGroupware apps be uncommenting them in .mrconfig and run mr up
-* continue installation at http://localhost/egroupware/setup/
+* # continue installation at http://localhost/egroupware/setup/
+* # to get minified JavaScript and CSS you need to install nodejs and grunt, if you have not already done so
+* # install nodejs from your distribution package manager
+* npm install -g grunt-cli # installs grunt globally
+* npm install # installes required grunt modules into node_modules/ dir
+* grunt # minify javascript and css, needs to run after every update!