2014-02-11: added Flattr-Button.

added Flattr-Button.

diff --git a/README b/README
--- a/README
+++ b/README
@@ -60,6 +60,7 @@ Copyright: 2013--2014 Arne Babenhauserhe
 
 License: GPLv3 or later
 
+<a href="https://flattr.com/submit/auto?user_id=ArneBab&url=http%3A%2F%2Fdraketo.de%2Fproj%2Fwisp" target="_blank"><img src="//api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0"></a>
 
 [^h]: Wisp is homoiconic because everything you write gets turned into lisp which is homoiconic.