adding windows installation instructions

README.md

@@ -45,4 +45,20 @@ Dependencies on OSX
 
 Dependencies on Windows
 -----------------------
+### Disclaimer:
+This section does not come with any warranty, whatsoever.
+The following steps are copied from [this tutorial](http://foobaring.blogspot.de/2013/03/howto-install-gtk2-in-activeperl-in.html).
+
+### Preparation:
+  * Install [Perl](http://downloads.activestate.com/ActivePerl/releases/5.18.2.1801/)
+  * Install [GTK for windows](http://downloads.sourceforge.net/gladewin32/gtk-2.8.20-win32-1.exe)
+
+### Setup
+  * Open a Command shell
+  * run `ppm repo add http://www.sisyphusion.tk/ppm`
+  * run `ppm install Gtk2 --force`
+
+
+Converting .epub ebooks
+=======================
 TODO