K 10
svn:author
V 5
lwhsu
K 8
svn:date
V 27
2020-09-07T07:44:14.955379Z
K 7
svn:log
V 194
Slightly improve usb(4)

- Mention USB 3.0
- Update links
- Fix `mandoc -T lint` warnings

Reviewed by:	bcr, hselasky
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26349

END