Extend the wrap-up section

[yarikoptic]

In https://github.com/ReproNim/module-reproducible-basics/pull/21/files#diff-9a1015a3c8a282fec2e64768cd192adbR13 @chrispycheng added a (self)wrap up section.
I wonder if we could/should extend it somehow. E.g.:

• recommend to submit a pull request adding new resources of interest for specific topic
• establish a little survey (need first to check if may be it is already planned within the larger scope of repronim training) and point to it

[yarikoptic]

Suggested by Dave Warren @DavidEWarrenPhD : make it more specific/concrete e.g. to either

• exercise to apply learned materials
• quick review/quiz

[yarikoptic]

May be could be an exercise to review/try to redo etc of some existing environment/script(s) -- e.g. simple_workflow . Tasks could relate to

• discover versions of software
• investigate git history on what was done and how things were obtained etc