Fix: Change contribute level to use HTTPS
Fix: Change contribute level to use HTTPS

Previously, the git clone for the contribute level was using SSH.  This
was causing issues for users who have not set up their SSH keys. With
HTTPS, no key is required to clone a public repository.

This fixes #107

hydrox24/githug,zachalewel/githug,youyou22/githug,hydrox24/githug,Gazler/githug,wrestt/githug,FP-QAs/githug,blueyi/githug,ga-wdi-boston/githug,raq929/githug,kuramameng/githug,kaylal12/githug,kaylal12/githug,resource11/githug,raq929/githug,resource11/githug,kuramameng/githug,blueyi/githug,mtam2/githug,eshimel/githug,mtam2/githug,geoluther/githug,zachalewel/githug,Limags/githug,jackmaney/githug,HanJisoo/Test,legendtkl/githug,resource11/githug,FP-QAs/githug,HanJisoo/Test,sideci-sample/sideci-sample-githug,Gazler/githug,jackmaney/githug,ga-wdi-boston/githug,kaylal12/githug,wrestt/githug,wrestt/githug,youyou22/githug,Gazler/githug,HanJisoo/Test,FP-QAs/githug,hydrox24/githug,geoluther/githug,Limags/githug,kuramameng/githug,youyou22/githug,sideci-sample/sideci-sample-githug,eshimel/githug,blueyi/githug,legendtkl/githug,raq929/githug,Limags/githug,eshimel/githug,geoluther/githug,FP-QAs/githug,legendtkl/githug,jackmaney/githug,mtam2/githug,zachalewel/githug