Have a single source of truth for licensing information
We had information in both README.md and CONTRIBUTING.md about Mbed TLS licensing,
but the information in CONTRIBUTING.md was missing that authors still need to
accept that their contributions may be distributed under both Apache 2.0 and
GPLv2-or-later.
Move all but the most high-level “Mbed TLS files are provided under the
Apache-2.0 license” statement to CONTRIBUTING.md, and tidy up the text a bit.
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/README.md b/README.md
index d5b6c12..875e6bf 100644
--- a/README.md
+++ b/README.md
@@ -249,7 +249,7 @@
License
-------
-Unless specifically indicated otherwise in a file, Mbed TLS files are provided under the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license. See the [LICENSE](LICENSE) file for the full text of this license. Contributors must accept that their contributions are made under both the Apache-2.0 AND [GPL-2.0-or-later](https://spdx.org/licenses/GPL-2.0-or-later.html) licenses. This enables LTS (Long Term Support) branches of the software to be provided under either the Apache-2.0 OR GPL-2.0-or-later licenses.
+Unless specifically indicated otherwise in a file, Mbed TLS files are provided under the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license. See the [LICENSE](LICENSE) file for the full text of this license, and [the 'License and Copyright' section in the contributing guidelines](CONTRIBUTING.md#License-and-Copyright) for more information.
Contributing
------------