2020 Resource Hints chapter (#1587)

* docs: Init Resource Hints 2020 chapter

* fix: quotes

* fix: quotes inside figure_markup

* fix: added chart 1

Co-authored-by: Rick Viscomi <[email protected]>

* fix: added chart 2

Co-authored-by: Rick Viscomi <[email protected]>

* fix: gid

Co-authored-by: Rick Viscomi <[email protected]>

* fix: added chart 3

Co-authored-by: Rick Viscomi <[email protected]>

* fix: added chart 4

Co-authored-by: Rick Viscomi <[email protected]>

* fix: reviewers order and gid/sql references

* fix: added link to coinbase text

Co-authored-by: Barry Pollard <[email protected]>

* fix: lowercase "resource hints"

Co-authored-by: Barry Pollard <[email protected]>

* fix: code format

Co-authored-by: Barry Pollard <[email protected]>

* fix: combined similar url

Co-authored-by: Barry Pollard <[email protected]>

* fix: added link to uses-rel-preconnect

Co-authored-by: Barry Pollard <[email protected]>

* fix: link between almanac pages

Co-authored-by: Barry Pollard <[email protected]>

* fix: tags

Co-authored-by: Barry Pollard <[email protected]>

* fix: text CPU and network resources

Co-authored-by: Barry Pollard <[email protected]>

* fix: polished hints adoption text

Co-authored-by: Barry Pollard <[email protected]>

* fix: dns-prefetch vs preload

Co-authored-by: Barry Pollard <[email protected]>

* fix: code formatting

Co-authored-by: Barry Pollard <[email protected]>

* fix: code formatting

Co-authored-by: Barry Pollard <[email protected]>

* fix: code formatting

Co-authored-by: Barry Pollard <[email protected]>

* fix: code formatting

Co-authored-by: Barry Pollard <[email protected]>

* fix: changed ML title

Co-authored-by: Barry Pollard <[email protected]>

* fix: http/2 push text

Co-authored-by: Barry Pollard <[email protected]>

* fix: more context in HTTP/2 text

Co-authored-by: Barry Pollard <[email protected]>

* fix: link Fastly blog

Co-authored-by: Barry Pollard <[email protected]>

* fix: critical rendering text

Co-authored-by: Barry Pollard <[email protected]>

* chore: added todos

* fix: such as

* fix: media query text

Co-authored-by: Barry Pollard <[email protected]>

* chore: more tods

Co-authored-by: Rick Viscomi <[email protected]>
Co-authored-by: Barry Pollard <[email protected]>