Bump html-proofer from 5.0.0 to 5.0.4#964

dependabot[bot] wants to merge 1 commit intomaingithub/training-kit:mainfrom

dependabot/bundler/html-proofer-5.0.4github/training-kit:dependabot/bundler/html-proofer-5.0.4Copy head branch name to clipboard