Fix link to PR guidelines (#879)
Fix link to PR guidelines (#879)


rpottsoh/x-common,exercism/x-common,jmluy/x-common,Vankog/problem-specifications,exercism/x-common,ErikSchierboom/x-common,jmluy/x-common,Vankog/problem-specifications,ErikSchierboom/x-common,petertseng/x-common,jmluy/x-common,rpottsoh/x-common,petertseng/x-common