Apply DCO to registry-support

CONTRIBUTING.md

@@ -6,6 +6,13 @@ Thank you for your interest in contributing to the Devfile Registry! We welcome
 
 Before contributing to this repository for the first time, please review our project's [Code of Conduct](https://github.com/devfile/api/blob/main/CODE_OF_CONDUCT.md)
 
+## Certificate of Origin
+
+By contributing to this project you agree to the Developer Certificate of
+Origin (DCO). This document was created by the Linux Kernel community and is a
+simple statement that you, as a contributor, have the legal right to make the
+contribution. See the [DCO](https://github.com/devfile/api/issues/DCO) file for details.
+
 ## How to Contribute:
 
 ### Issues

DCO

@@ -0,0 +1,37 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+1 Letterman Drive
+Suite D4700
+San Francisco, CA, 94129
+
+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.

README.md

@@ -51,4 +51,12 @@ $ helm install devfile-registry ./deploy/chart/devfile-registry \
 	--set devfileIndex.tag=latest
 ```
 
-For more information on the Helm chart, consult [its readme](deploy/chart/devfile-registry/README.md).
+For more information on the Helm chart, consult [its readme](deploy/chart/devfile-registry/README.md).
+
+## Contributing
+
+Please see our [contributing.md](./CONTRIBUTING.md).
+
+## License
+
+Apache License 2.0, see [LICENSE](./LICENSE) for details.