Add Contributing.md with a set of label descriptions. Fix for #64
Add Contributing.md with a set of label descriptions.
Fix for #64

danachap/CodeContracts,SergeyTeplyakov/CodeContracts,danielcweber/CodeContracts,danielcweber/CodeContracts,danielcweber/CodeContracts,huoxudong125/CodeContracts,huoxudong125/CodeContracts,ndykman/CodeContracts,Microsoft/CodeContracts,ndykman/CodeContracts,SergeyTeplyakov/CodeContracts,SergeyTeplyakov/CodeContracts,sharwell/CodeContracts,danachap/CodeContracts,ndykman/CodeContracts,hubuk/CodeContracts,Microsoft/CodeContracts,SergeyTeplyakov/CodeContracts,huoxudong125/CodeContracts,Microsoft/CodeContracts,SergeyTeplyakov/CodeContracts,ndykman/CodeContracts,ndykman/CodeContracts,huoxudong125/CodeContracts,hubuk/CodeContracts,Microsoft/CodeContracts,sharwell/CodeContracts,danachap/CodeContracts,ndykman/CodeContracts,hubuk/CodeContracts,ndykman/CodeContracts,sharwell/CodeContracts,hubuk/CodeContracts,Microsoft/CodeContracts,danielcweber/CodeContracts,hubuk/CodeContracts,sharwell/CodeContracts,danachap/CodeContracts,danielcweber/CodeContracts,sharwell/CodeContracts,danachap/CodeContracts,danachap/CodeContracts,hubuk/CodeContracts,sharwell/CodeContracts,danachap/CodeContracts,hubuk/CodeContracts,huoxudong125/CodeContracts,danielcweber/CodeContracts,huoxudong125/CodeContracts,sharwell/CodeContracts,SergeyTeplyakov/CodeContracts,danielcweber/CodeContracts,Microsoft/CodeContracts,Microsoft/CodeContracts,SergeyTeplyakov/CodeContracts,huoxudong125/CodeContracts