validate html

[jaredsburrows]

Validate and fix HTML errors - https://validator.w3.org/#validate_by_input

• Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.
• Element dl is missing a required instance of child element dd.
• The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.
• Element pre not allowed as child of element ul in this context.
• Element br not allowed as child of element ul in this context.
• Element hr not allowed as child of element ul in this context.

Closes #149