Add VCS URLs

debian/control

@@ -2,6 +2,8 @@ Source: pptpd
 Maintainer: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
 Homepage: http://poptop.sourceforge.net/dox/
 Standards-Version: 3.9.8
+Vcs-Browser: https://git.in-ulm.de/cbiedl/pptpd
+Vcs-Git: https://git.in-ulm.de/cbiedl/pptpd.git
 Build-Depends: debhelper (>= 10~),
     libwrap0-dev,
     ppp-dev (>= 2.4.7-1+~),