Polished the CONTRIBUTING file.
Polished the CONTRIBUTING file.

sbespalov/strongbox,korest/strongbox,sbespalov/strongbox,ivanursul/strongbox,baisjuan/strongbox,ivanursul/strongbox,sbespalov/strongbox,strongbox/strongbox,AlexOreshkevich/strongbox,sbespalov/strongbox,nenko-tabakov/strongbox,strongbox/strongbox,strongbox/strongbox,strongbox/strongbox