[CONTENT] Updates status
[BUGFIX] Enables overlay toggle transition in multiple browsers; removes outline on focus in FF
[CONTENT] Updates about page
[CONTENT] Adds new book, project draft
[FEATURE] Switches to kramdown for markdown rendering, modifies footnote styles
[CONTENT] Adds new images & book
[FEATURE] Removes SVG background from borders
[CONTENT] Updates status
[FEATURE] Refactors map overlays to use mapbox; adds pin icon