feat: add all editors (#1098)

packages/components/src/org.standardnotes.plus-editor/README.md

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+# Plus Editor
+
+The Plus Editor is a Standard Notes derived editor that is perfect for crafting any document. Converts note to HTML.
+
+![Highlighting, fonts, colors, tables, lists, and more!](plus_editor_bar.png)
+
+## Quickstart
+
+Use your browser to see the Plus Editor in action.
+
+1. Clone this repository
+1. Run `yarn` to install dependencies
+1. Run `yarn start` to start local dev server
+1. Open `http://localhost:8001` in your browser
+
+## Contributing
+
+Feel free to create a pull request, we welcome your enthusiasm!
+
+## Support
+
+Please open a new issue and the Standard Notes team will take a look as soon as we can. For more information on editors, refer to the following link:
+
+- Standard Notes Help: [What are editors?](https://standardnotes.org/help/77/what-are-editors)
+
+We are also reachable on our forum, Slack, Reddit, Twitter, and through email:
+
+- Standard Notes Help and Support: [Get Help](https://standardnotes.org/help)
+## License
+
+[GNU AGPL v3.0](https://choosealicense.com/licenses/agpl-3.0/)