docs: update cypress-commands README (#4335)

Co-authored-by: Marcus Notheis <[email protected]>

Author: Lukas742

packages/cypress-commands/README.md

@@ -1 +1,27 @@
-todo
+# @ui5/webcomponents-cypress-commands
+
+> This package is a work-in-progress and can be extended by you! If you feel like a command or query is missing, please
+> feel free to open a PR adding it to our library. Contributions are always welcome!"
+
+Since testing web components is sometimes not as straightforward as one would like it to be, we offer a package with a set of commands and queries to make it easier to interact with them:
+
+## Installation
+
+```sh
+npm install @ui5/webcomponents-cypress-commands
+```
+
+After the installation you can import it in your entry file (e.g. `component.ts`):
+
+```ts
+import '@ui5/webcomponents-cypress-commands';
+```
+
+Now you can use all commands and queries that are available in this package.
+
+> You can find a detailed description of all available commands and queries [here](https://sap.github.io/ui5-webcomponents-react/?path=/docs/testing-with-cypress-setup--docs)
+
+## License
+
+Please see our [LICENSE](https://github.com/SAP/ui5-webcomponents-react/blob/main/LICENSE) for copyright and license information.
+Detailed information including third-party components and their licensing/copyright information is available via the [REUSE tool](https://api.reuse.software/info/github.com/SAP/ui5-webcomponents-react).