A little extra help since we're requiring signed-off commits

[absoludity]

Description of the change

Since we say in the CONTRIBUTING.md guidelines that we require DCO sign-off on all commits, I've added the DCO bot to check PRs.

This update just has a little extra info to help when people find they need to do sign-off retrospectively, as well as ensuring it's in all commits for the project if they want.

Benefits

Avoid frustration with DCO sign-off.

Possible drawbacks

None that I can see.

[antgamdia]

Great, thanks for the information. I don't know if we should directly move to CLA instead of DCO, but, since we are requiring DCO atm, it's a great addition.

[antgamdia]

I think there's an easier way to achieve it by appending --signoff

git commit -m "whatever" --signoff

https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff

Also, in vscode:

[absoludity]

I think there's an easier way to achieve it by appending --signoff

git commit -m "whatever" --signoff

Yes, that's already mentioned earlier. The new section is about (1) how to deal with a situation where you've already got a bunch of commits and (2) how to avoid needing to remember.

As mentioned, I've switched the DCO bot off again to avoid churn of processes until next iteration when we discuss, but will land this just in case we decide to re-enable it.