2 check-ins using file docs/index.md version d3febb33b2

2023-04-12
19:21
update readings check-in: 6d74c239a1 user: jboy tags: revise-for-2023
2023-04-06
15:07
update readings link; remove May 1 tutorial; update timetable check-in: 47bdc003c7 user: jboy tags: revise-for-2023