Merge remote-tracking branch 'origin/apg-1.2' into 2021-11_Note

Public Working Draft # 3 of WAI-ARIA Authoring Practices 1.2

Third working draft of Authoring Practices for ARIA 1.2 Published to w3.org on December 18, 2019 at:
https://www.w3.org/TR/2019/WD-wai-aria-practices-1.2-20191218/

use respec's weird flavor

Merge pull request #1093 from w3c/update-apg-1.1

Update apg-1.1 with latest changes from master

Public Working Draft # 2 of WAI-ARIA Authoring Practices 1.2

Published to w3.org on December 18, 2018 at:
https://www.w3.org/TR/2018/WD-wai-aria-practices-1.2-20181218/

First Public Working Draft of WAI-ARIA Authoring Practices 1.2

First working draft of Authoring Practices for ARIA 1.2 Published to w3.org on July 19, 2018 at:
https://www.w3.org/TR/2018/WD-wai-aria-practices-1.2-20180719/

WAI-ARIA Authoring Practices 1.1 Release 3

Published Feb 7, 2019 on w3.org at:
https://www.w3.org/TR/2019/NOTE-wai-aria-practices-1.1-20190207/

See change log in appendix for changes since release 2 in July 2018.

Appendix: Add APG 1.1 Release 3 Change Log

Merge branch 'master' into apg-1.2

Bring branch for APG 1.2 up-to-date to prepare for publication of working draft.

got a year off by 3