bv21.md update.
authorCarl Hetherington <cth@carlh.net>
Sat, 10 Apr 2021 00:01:23 +0000 (02:01 +0200)
committerCarl Hetherington <cth@carlh.net>
Sat, 10 Apr 2021 00:01:23 +0000 (02:01 +0200)
commit4a6d23119eceeba42abe0f2615cfaac92e74c83c
tree734381d856ea67986d083a5184ac81d960496669
parenteed7e1543b6a55b8da4cf167fa8b2b866f0fba28
bv21.md update.
doc/bv21.md