Tentatively update Workstream Policy and LICENSE

LICENSE

@@ -1,7 +1,10 @@
-Copyright © 2018 WHATWG (Apple, Google, Mozilla, Microsoft).
-This work is licensed under a Creative Commons Attribution 4.0 International License:
+Copyright © 2020 WHATWG (Apple, Google, Mozilla, Microsoft).
+This work is licensed under a Creative Commons Attribution 4.0 International License.
+Alternatively, this work is licensed under a BSD 3-Clause License for incorporation into software.
 
-Attribution 4.0 International
+=======================================================================
+
+Creative Commons Attribution 4.0 International License
 
 =======================================================================
 
@@ -394,3 +397,35 @@ the avoidance of doubt, this paragraph does not form part of the public
 licenses.
 
 Creative Commons may be contacted at creativecommons.org.
+
+=======================================================================
+
+BSD 3-Clause License
+
+=======================================================================
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+  2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the
+     distribution.
+  3. Neither the name of the copyright holder nor the names of its
+     contributors may be used to endorse or promote products derived
+     from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Workstream Policy.md

@@ -276,7 +276,7 @@ The [Steering Group]'s determination in each instance is final and non-appealabl
 ### Notice for Living Standards
 
 [Living Standards][Living Standard] must include the following notice, including the link:
-> Copyright © YEAR WHATWG (Apple, Google, Mozilla, Microsoft). This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
+> Copyright © YEAR WHATWG (Apple, Google, Mozilla, Microsoft). This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/). Alternatively, this work is licensed under a [BSD 3-Clause License] for incorporation into software.
 
 In the text above, YEAR must be replaced by the current year at the time the [Living Standard] is published.
 
@@ -289,7 +289,7 @@ In the text above, "Living Standard Review Draft" must link to the latest [Revie
 ### Notice for Living Standard Review Drafts
 
 [Living Standard Review Drafts][review-draft] must include the following notice, including the link:
-> Copyright © YEAR WHATWG (Apple, Google, Mozilla, Microsoft). This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
+> Copyright © YEAR WHATWG (Apple, Google, Mozilla, Microsoft). This work is licensed under a [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/). Alternatively, this work is licensed under a [BSD 3-Clause License] for incorporation into software.
 
 In the text above, YEAR must be replaced by the current year at the time the [Living Standard Review Draft][review-draft] is published.
 
@@ -335,11 +335,12 @@ must include the text of the applicable license in a LICENSE file.
 
 The contents of the license file must start with:
 > Copyright © YEAR WHATWG (Apple, Google, Mozilla, Microsoft).
-> This work is licensed under a Creative Commons Attribution 4.0 International License:
+> This work is licensed under a Creative Commons Attribution 4.0 International License.
+> Alternatively, this work is licensed under a BSD 3-Clause License for incorporation into software.
 
 where YEAR is the current year. This copyright notice must be followed
 by the full text of the Creative Commons Attribution 4.0 International
-License in plaintext.
+License and the BSD 3-Clause License in plaintext.
 
 The SG repository has an example of how to do this correctly in its [LICENSE file](./LICENSE).
 
@@ -361,6 +362,7 @@ initiatives.
 
 [contributor]: ./IPR%20Policy.md#contributor
 [review-draft]: ./Workstream%20Policy.md#review-draft
+[BSD 3-Clause License]: ./BSD%203-Clause%20License.md
 [Code of Conduct]: ./Code%20of%20Conduct.md
 [Contributions]: ./IPR%20Policy.md#21-contribution
 [Contributor and Workstream Participant Agreement]: https://participate.whatwg.org/agreement