Update CONTRIBUTING.md
Update CONTRIBUTING.md
TitoAgudelo/tangram,rosamcgee/tangram,TitoAgudelo/tangram,rosamcgee/tangram,ceseale/tangram,DHaylock/tangram,DHaylock/tangram,taylorhxu/tangram,ceseale/tangram,ceseale/tangram,zerebubuth/tangram,xvilan/tangram,rosamcgee/tangram,zerebubuth/tangram,taylorhxu/tangram,xvilan/tangram,tangrams/tangram,TitoAgudelo/tangram,zerebubuth/tangram,xvilan/tangram,DHaylock/tangram,taylorhxu/tangram,tangrams/tangram