Use license appropriate for websites: CC-by-4.0 for docs and Apache 2 for code

[chalin]

CNCF websites (and hence this website template repo), should have the following licensing terms AFAIK:

1. Website documentation is CC by 4.0
2. Code and code excerpts are licensed under the Apache License, Version 2.0

If you agree, I'd like to suggest that this template repo have a single LICENSE file containing the following text:

Except as otherwise noted, the content of this repository is licensed under the
Creative Commons Attribution 4.0 License [1], and code and code samples are
licensed under the Apache License, Version 2.0 [2].

Copyright 2021-present website Authors. All rights reserved.

[1]: https://creativecommons.org/licenses/by/4.0, a copy is included below.
[2]: https://apache.org/licenses/LICENSE-2.0

---

Creative Commons Attribution 4.0 International
...

This is the LICENSE we're using for etcd.io.

Since 9ce9f2d, this template repo's LICENSE only mentions (2).

cc @caniszczyk @celestehorgan @nate-double-u

Related: #62

[chalin]

Ah, I just noticed the links that @nate-double-u added to #58 (comment), referring to the licenses for our techdocs repo and the cncf/project-template:

Some more relevant PRs: cncf/techdocs#19, cncf/project-template#12

@celestehorgan's comments in those PRs confirm the statement made in the opening comment here. Hmm, I think that licensing was discussed while I was away.

I'd like to vote for keeping things extra simple by having a single license file per repo mentioning the entire licensing policy, as proposed in #63.

[nate-double-u]

Hmm, I think that licensing was discussed while I was away.

We did, I think this is the relevant slack thread: https://cloud-native.slack.com/archives/G01CSL044G0/p1624384834007600