remove unused navbar and top padding [ci skip]
add placeholder JS for my tweaks [ci skip]
add IDs so I can style header and content elements directly [ci skip]
de-emphasize 'punctuation' in email address [ci skip]
tighten up nav and content column width [ci skip]
fix header size and opacity, and content column position and scrolling [ci skip]
add StackOverflow and GitHub badges [ci skip]