Add DCO requirement in Contributing guidelines (#4008)

Signed-off-by: Olivier Lemasle <o.lemasle@gmail.com>
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Olivier Lemasle 2020-07-14 18:38:57 +02:00 committed by GitHub
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@ -76,6 +76,17 @@ $ go mod tidy
Please refer to [Go Modules](https://github.com/golang/go/wiki/Modules) for more details. Please refer to [Go Modules](https://github.com/golang/go/wiki/Modules) for more details.
## Developer Certificate of Origin
As required by the CNCF's [charter](https://github.com/cncf/foundation/blob/master/charter.md#11-ip-policy),
all new code contributions must be accompanied by a [Developer Certificate of Origin (DCO)](https://developercertificate.org/). CoreDNS uses [Probot](https://github.com/probot/dco#how-it-works) to enforce the DCO on pull requests.
You may use git option `-s` to append automatically to the `Sign-off-by` line to your commit messages:
```
$ git commit -s -m 'This is my commit message'
```
# Thank You # Thank You
Thanks for your help! CoreDNS would not be what it is today without your contributions. Thanks for your help! CoreDNS would not be what it is today without your contributions.