Update CONTRIBUTING.md
Update CONTRIBUTING.md

Fixes typo.
pedrocorreia/Ink,mubassirhayat/Ink,sapo/Ink,rcarmo/Ink,sapo/Ink,sapo/Ink,Anmo/Ink,rcarmo/Ink,birthdayalex/Ink,pkdevbox/Ink,birthdayalex/Ink,birthdayalex/Ink,pedrocorreia/Ink,Anmo/Ink,mubassirhayat/Ink,rcarmo/Ink,pkdevbox/Ink,pedrocorreia/Ink,Anmo/Ink,pkdevbox/Ink