If you didn't sign off your commits before creating the pull request, you can fix that after the fact.

To sign off a single commit:

`git commit --amend --signoff`

To sign off one or multiple commits:

  reasonable contribution (meaning it is not a single liner cosmetic PR).

**2. Valid?**

-   If the PR passes all the quality checks then we go ahead and assign a
    reviewer.
-   If the PR didn't meet the validation criteria, we request for additional
    changes to be made to PR to pass quality checks and send it back or on a
    rare occasion we may reject it.

**3. Review**