add <code> block and prettify JS
add secondary <code> block
remove 'lang-js' class on primary <code> block
update footer links
update header bullet points
simplify fallback arrow
clean up formatting
note image size is 1920x1080
set injector script to defer execution

recommend placing at closing </body> tag
responsive handling of code boxes + arrow
fix bottom scrolling
remove version number on source script
add placeholders for info links
add example betterlink.js script
highlight "insert code here" on hover
add info-box well to answer FAQs
hide/show FAQs on link selection

separate questions between "questions about what the JS does" v. "how do
I add and enable this feature"

'info-box' and its items are hidden by default. they are enabled and
displayed when selecting particular links.
add international placeholder link
support hashes in the URL to link to FAQ sections
validate requested item to display is a FAQ item