Create CODE_OF_CONDUCT.md (#1029)
Create CODE_OF_CONDUCT.md (#1029)


ChrisCanCompute/assertj-core,joel-costigliola/assertj-core,ChrisCanCompute/assertj-core,joel-costigliola/assertj-core,hazendaz/assertj-core,ChrisA89/assertj-core,xasx/assertj-core,assertj/assertj-core,assertj/assertj-core,ChrisA89/assertj-core,hazendaz/assertj-core,xasx/assertj-core