add some lines to the readme

COPYING.md

@@ -2,7 +2,7 @@ Copying the MPI Toolkit
 =======================
 
 Any file in this project that does not state otherwise and is not listed as an
-exception below is part of ??? and copyright (c) 2014-2017 ???.
+exception below is part of Toolkit and copyright (c) 2014-2017 the Toolkit authors.
 
 For a list of the authors see the commit log.
 

README.md

@@ -1,2 +1,30 @@
 # Toolkit
 MPI Bioinformatics Toolkit 2
+
+Credits
+-------
+
+The MPI-Toolkit is to some extent the product of volunteer work. Thanks to
+
+...
+
+
+Supported browsers
+------------------
+
+- [Chrome](https://www.google.com/chrome) or [Chromium](https://www.chromium.org/getting-involved/download-chromium), 1 year old or newer (fastest local analysis!)
+- [Firefox](https://www.mozilla.org/firefox), 1 year old or newer
+- Opera 34 and newer (needs to be tested)
+- Safari 9 and newer (needs to be tested)
+- Microsoft Edge (needs to be tested)
+- Internet Explorer 11 (needs to be tested)
+
+Older browsers will not work. For your own sake, please upgrade.
+Security and performance, think about it!
+
+License
+-------
+
+The MPI-Toolkit is licensed under the GNU Affero General Public License 3 or any later
+version at your choice with an exception for Highcharts. See COPYING for
+details.