update CONTRIBUTING.md
update CONTRIBUTING.md

tboox/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,waruqi/xmake,waruqi/xmake,waruqi/xmake,tboox/xmake,waruqi/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,tboox/xmake