Updated legal copy (#869)

* Updated legal copy

Closes #853

* Adds the disclaimer as required by §12 of v5 JDF docs
* Updates the copyright section to be more accurate
* Improves the history of governance
* Adds a "License" subsection
* Adds a readme to `/signed-agreements`

Co-authored-by: Brian Warner <bwarner@linuxfoundation.org>

* Updates to spec preamble

This commit makes a few updates to the legal text as recommended by Linux Foundation legal. Some of
the changed lines may be trivial (spacing, etc) as I've replaced the existing text with what was
provided to ensure all of the changes are captured.

Signed-off-by: Brian Warner <brian@bdwarner.com>

* Format and add links

Co-authored-by: Brian Warner <bwarner@linuxfoundation.org>
Co-authored-by: Brian Warner <brian@bdwarner.com>

signed-agreements/README.md

@@ -0,0 +1,12 @@
+# Legacy Signed Agreements
+
+The signed agreement found in this directory was contributed when this
+specification was licensed under OWFa 1.0 on September 26, 2017 by Facebook.
+
+Since then the [GraphQL Foundation](https://graphql.org/foundation/) was
+formed in 2019, at which point the GraphQL Specification Project became a
+[Joint Development Foundation](https://www.jointdevelopment.org/) project.
+
+The charter and legal documents currently governing this specification and other
+GraphQL projects can be found in the
+[GraphQL Foundation repository](https://github.com/graphql/foundation).

spec/GraphQL.md

@@ -8,42 +8,60 @@ This is the specification for GraphQL, a query language and execution engine
 originally created at Facebook in 2012 for describing the capabilities and
 requirements of data models for client-server applications. The development of
 this open standard started in 2015. This specification was licensed under OWFa
-1.0 in 2017. Copyright and trademark was transferred to the GraphQL Foundation
-in 2019.
+1.0 in 2017. The [GraphQL Foundation](https://graphql.org/foundation/) was
+formed in 2019 as a neutral focal point for organizations who support the
+GraphQL ecosystem, and the
+[GraphQL Specification Project](https://graphql.org/community/) was established
+also in 2019 as the Joint Development Foundation Projects, LLC, GraphQL Series.
 
-GraphQL has evolved and may continue to evolve in future editions of this
-specification. Previous editions of the GraphQL specification can be found at
-permalinks that match their [release tag](https://github.com/graphql/graphql-spec/releases).
-The latest working draft release can be found at [https://spec.graphql.org/draft](https://spec.graphql.org/draft).
+If your organization benefits from GraphQL, please consider
+[becoming a member](https://graphql.org/foundation/join/#graphql-foundation)
+and helping us to sustain the activities that support the health of our neutral
+ecosystem.
 
-**Copyright notice**
-
-Copyright © 2015-2018, Facebook, Inc.
+The GraphQL Specification Project has evolved and may continue to evolve in
+future editions of this specification. Previous editions of the GraphQL
+specification can be found at permalinks that match their
+[release tag](https://github.com/graphql/graphql-spec/releases). The latest
+working draft release can be found at
+[https://spec.graphql.org/draft](https://spec.graphql.org/draft).
 
-Copyright © 2019-present, GraphQL Foundation
 
-As of September 26, 2017, the following persons or entities have made this
-Specification available under the Open Web Foundation Final Specification
-Agreement (OWFa 1.0), which is available at [openwebfoundation.org](http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0).
+**Copyright notice**
 
-* Facebook, Inc.
+Copyright © 2015-2018, Facebook, Inc.
 
-You can review the signed copies of the Open Web Foundation Final Specification
-Agreement Version 1.0 for this specification at [github.com/graphql/graphql-spec](https://github.com/graphql/graphql-spec/tree/main/signed-agreements),
-which may also include additional parties to those listed above.
+Copyright © 2019-present, GraphQL contributors
 
-Your use of this Specification may be subject to other third party rights.
-THIS SPECIFICATION IS PROVIDED “AS IS.” The contributors expressly disclaim any
+THESE MATERIALS ARE PROVIDED “AS IS.” The parties expressly disclaim any
 warranties (express, implied, or otherwise), including implied warranties of
 merchantability, non-infringement, fitness for a particular purpose, or title,
-related to the Specification. The entire risk as to implementing or otherwise
-using the Specification is assumed by the Specification implementer and user.
-IN NO EVENT WILL ANY PARTY BE LIABLE TO ANY OTHER PARTY FOR LOST PROFITS OR ANY
-FORM OF INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER
-FROM ANY CAUSES OF ACTION OF ANY KIND WITH RESPECT TO THIS SPECIFICATION OR ITS
-GOVERNING AGREEMENT, WHETHER BASED ON BREACH OF CONTRACT, TORT (INCLUDING
-NEGLIGENCE), OR OTHERWISE, AND WHETHER OR NOT THE OTHER PARTY HAS BEEN ADVISED
-OF THE POSSIBILITY OF SUCH DAMAGE.
+related to the materials. The entire risk as to implementing or otherwise using
+the materials is assumed by the implementer and user. IN NO EVENT WILL THE
+PARTIES BE LIABLE TO ANY OTHER PARTY FOR LOST PROFITS OR ANY FORM OF INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER FROM ANY CAUSES
+OF ACTION OF ANY KIND WITH RESPECT TO THIS DELIVERABLE OR ITS GOVERNING
+AGREEMENT, WHETHER BASED ON BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), OR
+OTHERWISE, AND WHETHER OR NOT THE OTHER MEMBER HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+
+**Licensing**
+
+The GraphQL Specification Project is made available by the
+[Joint Development Foundation](https://www.jointdevelopment.org/). The current
+[Working Group](https://github.com/graphql/graphql-wg) charter, which includes
+the IP policy governing all working group deliverables (including specifications,
+source code, and datasets) may be found at
+[https://technical-charter.graphql.org](https://technical-charter.graphql.org).
+
+Currently, the licenses governing GraphQL Specification Project deliverables are:
+
+| Deliverable    | License                                                 |
+| -------------- | ------------------------------------------------------- |
+| Specifications | [Open Web Foundation Agreement 1.0 Mode](http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0) (Patent and Copyright)
+| Source code    | [MIT License](https://opensource.org/licenses/MIT)
+| Data sets      | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/)
 
 
 **Conformance**