Add Windows building badge from AppVeyor
Add Windows building badge from AppVeyor
LarsAeschlimann/SuperTeacher,BFH-E1D-2015-2016/SuperTeacher,NicoHaui/SuperTeacher,NicoHaui/SuperTeacher,BFH-E1D-2015-2016/SuperTeacher,NicoHaui/SuperTeacher,LarsAeschlimann/SuperTeacher