Add Cypress to docker/l3d#85

docs/docker/unlighthouse/index.md

+---
+title: Docker Unlighthouse
+repo: https://gitlab.lakedrops.com/docker/unlighthouse
+issues: https://gitlab.lakedrops.com/docker/unlighthouse/-/issues
+tags:
+- docker
+- unlighthouse
+- tests
+---
+# Unlighthouse
+
+This project provides a tool for getting useful analysis from your website:
+
+- Performance
+- Accessibility
+- Best Practice
+- SEO
+
+![Screenshot](/files/screenshots/unlighthouse_dashboard.png)
+
+See more information [here](https://unlighthouse.dev/guide/getting-started/unlighthouse-cli).
+
+We recommend using [Docker for Drupal](omposer/plugin/d4d/) to install Unlighthouse, so you will benefit form the great
+and easy Drupal integration. You also get the corresponding [Ahoy](composer/plugin/ahoy/) commands out of the box.
+Make sure the Docker container inside [l3D](docker/l3d/) for Drupal are running, and you can start Unlighthouse by
+
+```ulh
+a unlighthouse on
+```
+
+You can access the tool via `http(s)://unlighthouse-<your domain>`.
\ No newline at end of file