4 check-ins using file docs/weeks/6.md version 152c6eea7a

2021-04-07
10:06
add reading for week 5 check-in: 1009ac1d91 user: jboy tags: trunk
10:05
add Wouters (2017) reference check-in: a448d6d6df user: jboy tags: trunk
2021-04-05
19:23
update assignment descriptions check-in: 397bfbbe4c user: jboy tags: trunk
19:23
update description of weeks check-in: ce14191f73 user: jboy tags: trunk