Create Contributing.md

Author: sgillen

Contributing.md

@@ -0,0 +1,54 @@
+We welcome PRs for new features or bugfixes, CI will automatically run automated tests on new PRs. You can also use the scripts/docker-test.sh to debug tests for a particular distribution locally. 
+
+We require that all contributors "sign-off" on their commits. This certifies that the contribution is your original work, or you have rights to submit it under the same license, or a compatible license.
+
+Any contribution which contains commits that are not Signed-Off can not be accepted.
+To sign off on a commit you simply use the --signoff (or -s) option when committing your changes:
+
+```
+$ git commit -s -m "Add cool feature."
+```
+
+This will append the following to your commit message:
+
+```
+Signed-off-by: Your Name <[email protected]>
+```
+
+Full text of the DCO:
+```
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+    have the right to submit it under the open source license
+    indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+    of my knowledge, is covered under an appropriate open source
+    license and I have the right under that license to submit that
+    work with modifications, whether created in whole or in part
+    by me, under the same open source license (unless I am
+    permitted to submit under a different license), as indicated
+    in the file; or
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) I understand and agree that this project and the contribution
+    are public and that a record of the contribution (including all
+    personal information I submit with it, including my sign-off) is
+    maintained indefinitely and may be redistributed consistent with
+    this project or the open source license(s) involved.
+```