Fix HTML5 spec violations and flip validator to hard-fail (closes #37)#42

jmxpearson merged 1 commit into

masterpearsonlab/pearsonlab.github.io:masterfrom

claude/issue-37-html5-validator-tighteningpearsonlab/pearsonlab.github.io:claude/issue-37-html5-validator-tighteningCopy head branch name to clipboard