Auto merge of #4307 - bundler:RochesterinNYC-update-development-submitting-prs, r=segiddins
Auto merge of #4307 - bundler:RochesterinNYC-update-development-submitting-prs, r=segiddins

Add pre-PR-submission steps to DEVELOPMENT.md

bundler/bundler,asutoshpalai/bundler,seanlinsley/bundler,bronzdoc/bundler,mvz/bundler,RochesterinNYC/bundler,RochesterinNYC/bundler,bronzdoc/bundler,seanlinsley/bundler,mvz/bundler,asutoshpalai/bundler,bundler/bundler,dilumnavanjana/bundler,dilumnavanjana/bundler