README: remove obsolete info

README.md

@@ -65,12 +65,5 @@ Madek is (C) Zürcher Hochschule der Künste (Zurich University of the Arts).
 
 Madek is Free Software under the GNU General Public License (GPL) v3, see the included LICENSE file for license details.
 
-Visit our main website at http://www.zhdk.ch and the IT center 
+Visit our main website at http://www.zhdk.ch and the IT center
 at http://itz.zhdk.ch
-
-Some of our developers like to use Navicat to visualize and optimize our database
-stuff. We thank PremiumSoft CyberTech Ltd. for granting us a free Navicat Premium
-license to support development of our Free/Open Source Software project:
-
-
-[![alt text](https://github.com/zhdk/madek/raw/master/doc/images/zhdk_logo.png "ZHdK logo")](http://www.zhdk.ch) ![alt text](https://github.com/zhdk/madek/raw/master/doc/images/navicat_logo.png "Navicat Premium Logo")