Make health checks more actionable

[guillaumervls]

Related: internal issue #14

[guillaumervls]

@davissp14 @DAlperin I added the "good first issue" label: if I'm wrong, feel free to remove it! You can even add "needs breakdown" if you think it'd be challenging for new folks to pick up as-is, and would require some planning from someone senior before.

Also you can just add "not now" (and remove "good first issue") if you think it has a low priority.