[Snyk] Security upgrade html-proofer from 3.4.0 to 3.4.0#16

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snyk-fix-a1e2e6f9842023cbdd83085bd5c5f170raymondcolebaugh/raymondcolebaugh.github.io:snyk-fix-a1e2e6f9842023cbdd83085bd5c5f170Copy head branch name to clipboard