[typography] new commits pushed by r12a

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

* matrix, Add a para about paged media columns
  by r12a
https://github.com/w3c/typography/commit/cc0a499d50e6cacc2def3265a68791f31f3ab721

Received on Monday, 13 January 2020 12:30:34 UTC