Fix(Styles): Fix style sheet

- Remove extra lines
- Make markup consistent
- Replace font-style:bold with the actual intended markup of
font-weight: bold. Now actually works.
Fix(HTML): Fix indentation, style, and validation problems.

- Closes HTML tag (currently missing)
- Adds title tag, and charset meta. Now is valid HTML.
- Fixes indentation
- Fix getElementById misunderstanding. Was set as ‘== undefined’ .
getElementById returns a null, not undefined.
- Fix javascript style for consistency.
- Add comment about loading the page styles to match the rest of the
page.
Fix(JS): Fix linting, vars,

- Add missing semicolons.
- Remove extra semicolons.
- Add missing var declarations.
- Remove trailing space.
- Remove object literal quotes.
- Make quotes consistently used.
merged JF <fix> bringing code up to Udacity standards