[typography] new commits pushed by r12a

The following commits were just pushed by r12a to https://github.com/w3c/typography:

* Rationalise sections and headings
  by r12a
https://github.com/w3c/typography/commit/8cad7bb962353cce751dbee80e2bfc725f60bd79

Received on Friday, 1 February 2019 17:22:22 UTC