ci: adopt reusable workflows from `named-data/actions`
Change-Id: I97ce6261282a27fd3dfa82b3d35a024b5e9533b5
diff --git a/README.md b/README.md
index ed4649e..f08b6f0 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,11 @@
## Contributing
We greatly appreciate contributions to the NDNCERT code base, provided that they are
-licensed under the GPL 3.0+ or a compatible license (see below).
-If you are new to the NDN software community, please read the
-[Contributor's Guide](https://github.com/named-data/.github/blob/master/CONTRIBUTING.md)
-to get started.
+licensed under the GNU GPL version 3 or a compatible license.
+If you are new to the NDN software community, please read our [Contributor's Guide](
+https://github.com/named-data/.github/blob/main/CONTRIBUTING.md) to get started.
## License
-NDNCERT is an open source project licensed under the GPL version 3.
-See [`COPYING.md`](COPYING.md) for more information.
+NDNCERT is free software distributed under the GNU General Public License version 3.
+See [`COPYING.md`](COPYING.md) for details.