Update CHANGELOG and history

Update GreedyNav.js

Replace custom comment hardcoded HTML with include

Also add custom_scripts.html include for custom comment provider JavaScript that loads in the footer.

Close #2549

Update CHANGELOG and history

Move page date to own file (#2544)

Update CHANGELOG and history

Strip trailing whitespace in seo_description (#2542)

Reword commit change

Make sticky sidebar live well with short content (#2514)

Fix typo

Release 4.19.2 💎

Wrap email in quotes

Close #2498

Update CHANGELOG and history

Update video (#2512)

* Update video

support bilibili video

* Update video

drop the duplicated <div> wrapper

* Update video

update video

Merge branch 'master' of https://github.com/mmistakes/minimal-mistakes

Add Myanmar (Burmese)

Update CHANGELOG and history

Update Burmese translation (#2500)

Update CHANGELOG and history

Update CHANGELOG and history