provide more info about task_info.yaml

[KaiWaldrant]

Describe your changes

Add more info about task_info.yaml

Issue ticket number and link

Closes #268

Checklist before requesting a review

• [x] I have performed a self-review of my code

• Check the correct box. Does this PR contain:

  • [ ] Breaking changes
  • [ ] New functionality
  • [ ] Major changes
  • [x] Minor changes
  • [ ] Bug fixes

• [x] Proposed changes are described in the CHANGELOG.md

• [x] CI Preview succeeds and looks good!

[github-actions[bot]]

[rcannood]

openproblems-bio/openproblems-v2#212 is ready to be merged ! :)

[KaiWaldrant]

The authors section in the define_task file is not proper yet. @rcannood can you take a look please ?

[rcannood]

These commits were included in #300 -- thanks!