Change project README file

- Add swag
- Add contributing and license information
- Change structure to standard sections

Author: Potherca

README.md

@@ -1,9 +1,47 @@
 # solid-nextcloud
+
+[![Project stage: Production Ready][project-stage-badge: Production Ready]][project-stage-page]
+[![License][license-shield]][license-link]
+[![Latest Version][version-shield]][version-link]
+![Maintained][maintained-shield]
+
+[![PDS Interop][pdsinterop-shield]][pdsinterop-site]
+[![standard-readme compliant][standard-readme-shield]][standard-readme-link]
+[![keep-a-changelog compliant][keep-a-changelog-shield]][keep-a-changelog-link]
+
 A plugin to make Nextcloud compatible with Solid.
 
+<!-- toc -->
+
+## Installation
+
 You can download it via the Nextcloud app store: https://apps.nextcloud.com/apps/solid
 
-## Development install
+### Manual install
+
+Please follow the [install instructions](https://github.com/pdsinterop/solid-nextcloud/blob/main/INSTALL.md).
+
+<!-- @TODO: ## Usage --> 
+
+## Contributing
+
+Questions or feedback can be given by [opening an issue on GitHub][issues-link].
+
+All PDS Interop projects are open source and community-friendly.
+Any contribution is welcome!
+For more details read the [contribution guidelines][contributing-link].
+
+All PDS Interop projects adhere to [the Code Manifesto](http://codemanifesto.com)
+as its [code-of-conduct][code-of-conduct]. Contributors are expected to abide by its terms.
+
+There is [a list of all contributors on GitHub][contributors-page].
+
+For a list of changes see the [CHANGELOG][changelog] or [the GitHub releases page][releases-page].
+
+### Development
+
+#### Development install
+
 Clone https://github.com/pdsinterop/test-suites, cd into it, and run:
 ```sh
 docker pull nextcloud
@@ -20,14 +58,42 @@ docker exec -u root -it server service apache2 reload
 Now visit https://localhost and log in as alice / alice123.
 
 ## Manual install
+
 Please follow the [install instructions](https://github.com/pdsinterop/solid-nextcloud/blob/main/INSTALL.md).
+### Testing 
+
+#### Unattended testing
 
-## Unattended testing
 There is a [GitHub Action](https://github.com/pdsinterop/solid-nextcloud/actions/workflows/ci.yml) that runs a [Docker-based test script](https://github.com/pdsinterop/solid-nextcloud/blob/585b968/.github/workflows/ci.yml#L29).
 
-## Manual testing
+#### Manual testing
+
 You can try out the various Solid apps that show up in the Solid App GUI inside the Nextcloud GUI on first use.
 
 ### Build / Deploy
 
 For publishing to the Nextcloud app store see [the deploy instructions](docs/deploy.md).
+
+## License
+
+All code created by PDS Interop is licensed under the [MIT License][license-link].
+
+[changelog]: CHANGELOG.md
+[code-of-conduct]: https://pdsinterop.org/code-of-conduct/
+[contributing-link]: https://pdsinterop.org/contributing/
+[contributors-page]: https://github.com/pdsinterop/solid-nextcloud/contributors
+[issues-link]: https://github.com/pdsinterop/solid-nextcloud/issues
+[releases-page]: https://github.com/pdsinterop/solid-nextcloud/releases
+[keep-a-changelog-link]: https://keepachangelog.com/
+[keep-a-changelog-shield]: https://img.shields.io/badge/Keep%20a%20Changelog-f15d30.svg?logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%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
+[license-link]: ./LICENSE
+[license-shield]: https://img.shields.io/github/license/pdsinterop/solid-nextcloud.svg
+[maintained-shield]: https://img.shields.io/maintenance/yes/2023.svg
+[pdsinterop-shield]: https://img.shields.io/badge/-PDS%20Interop-7C4DFF.svg?logo=data%3Aimage%2Fsvg%2Bxml%3Bbase64%2CPHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9Ii01IC01IDExMCAxMTAiIGZpbGw9IiNGRkYiIHN0cm9rZS13aWR0aD0iMCI+CiAgICA8cGF0aCBkPSJNLTEgNTJoMTdhMzcuNSAzNC41IDAgMDAyNS41IDMxLjE1di0xMy43NWEyMC43NSAyMSAwIDAxOC41LTQwLjI1IDIwLjc1IDIxIDAgMDE4LjUgNDAuMjV2MTMuNzVhMzcgMzQuNSAwIDAwMjUuNS0zMS4xNWgxN2EyMiAyMS4xNSAwIDAxLTEwMiAweiIvPgogICAgPHBhdGggZD0iTSAxMDEgNDhhMi43NyAyLjY3IDAgMDAtMTAyIDBoIDE3YTIuOTcgMi44IDAgMDE2OCAweiIvPgo8L3N2Zz4K
+[pdsinterop-site]: https://pdsinterop.org/
+[project-stage-badge: Production Ready]: https://img.shields.io/badge/Project%20Stage-Production%20Ready-brightgreen.svg
+[project-stage-page]: https://blog.pother.ca/project-stages/
+[standard-readme-link]: https://github.com/RichardLitt/standard-readme
+[standard-readme-shield]: https://img.shields.io/badge/-Standard%20Readme-brightgreen.svg
+[version-link]: https://packagist.org/packages/pdsinterop/solid-nextcloud
+[version-shield]: https://img.shields.io/github/v/release/pdsinterop/solid-nextcloud.svg?sort=semver