Merge pull request #19 from caitp/implementation-slides

Fix implementation slides
add technology and experience image
remove colon from title for consistency
Merge pull request #20 from jbraffoul/dev

add tech image, fix design title
add preload="auto" to video
add title slide
remove unused tag
split what/need slide into what, need, and future - reposition slides
remove slide number comments
remove vtt structure and options slide
modify webvtt in action - highlight sections of the webvtt file, display rendered image below
add stylized webvtt file wth highlighting
fix misspell
revert display inline
add display inline for HTML markup tag
increase li line height
change what can we do with webvtt
add references
add display inline to cue settings
make track valid