Update github-pages.md
Update github-pages.md

removed settings that don't influence the rendering
penchan1218/jekyllcn,LeuisKen/jekyllcn,honger05/jekyllcn,zhangkuaiji/jekyllcn,xcatliu/jekyllcn,penchan1218/jekyllcn,fengsmith/jekyllcn,honger05/jekyllcn,UniFreak/jekyllcn,xcatliu/jekyllcn,LeuisKen/jekyllcn,zhangkuaiji/jekyllcn,UniFreak/jekyllcn,honger05/jekyllcn,xcatliu/jekyllcn,UniFreak/jekyllcn,zhangkuaiji/jekyllcn,fengsmith/jekyllcn,LeuisKen/jekyllcn,penchan1218/jekyllcn,fengsmith/jekyllcn,xcatliu/jekyllcn