Merge pull request #48 from regginator/patch-1

Fix dead GTK+ for Windows doc link

web/index.md

@@ -95,7 +95,7 @@ forward. Contributions have been going to and coming from these projects:
 - [GNU SASL](http://www.gnu.org/software/gsasl/)
 - [GnuTLS](http://www.gnu.org/software/gnutls/)
 - [GraphicsMagick](http://www.graphicsmagick.org/)
-- [GTK+](http://www.gtk.org/download-windows-64bit.html)
+- [GTK+](https://www.gtk.org/docs/installations/windows)
 - [Hexen II: Hammer of Thyrion](http://uhexen2.sf.net/)
 - [iAuxSoft](http://www.iauxsoft.com/)
 - [ImageMagick](http://www.imagemagick.org/)
@@ -141,4 +141,4 @@ forward. Contributions have been going to and coming from these projects:
 - [wxPerl PPMs](http://www.wxperl.co.uk/building/msw.html)
 - [wxWidgets](http://www.wxwidgets.org/)
 - [YafaRay](http://www.yafaray.org/)
-- [zlib](http://www.zlib.net/)
+- [zlib](http://www.zlib.net/)