Fix typo in CONTRIBUTING.md (#477)
Fix typo in CONTRIBUTING.md (#477)

Fixes a typo in the .pylintrc link.
balopat/Cirq,quantumlib/Cirq,balopat/Cirq,balopat/Cirq,quantumlib/Cirq,quantumlib/Cirq,quantumlib/Cirq,quantumlib/Cirq