Add docs

README.md

@@ -1,12 +1,24 @@
 [![tests](https://github.com/weitzman/ddev-selenium-standalone-chrome/actions/workflows/tests.yml/badge.svg)](https://github.com/drud/ddev-addon-template/actions/workflows/tests.yml) ![project is maintained](https://img.shields.io/maintenance/yes/2022.svg)
 
-## Install
+## Introduction
 
 In ddev v1.19+, run `ddev get weitzman/ddev-selenium-standalone-chrome` to fetch this service into your local DDEV installation. You may then check it into your source control if desired.
 
+This service can be used with any project type. The examples below are Drupal-specific. Contributions for docs and tests that show this service working with other project types are appreciated.
+
 ## Use
 
-- Your project is now ready to run FunctionalJavascript and Nightwatch tests from Drupal core, or [Drupal Test Traits](https://gitlab.com/weitzman/drupal-test-traits) (DTT). All these types are tested in this repo. 
+- Your project is now ready to run FunctionalJavascript and [Nightwatch](https://www.drupal.org/docs/automated-testing/javascript-testing-using-nightwatch) tests from Drupal core, or [Drupal Test Traits](https://gitlab.com/weitzman/drupal-test-traits) (DTT). All these types are tested in this repo. Some examples to try:
+  - FunctionalJavascript:
+    - Ensure you have the `drupal/core-dev` Composer package or equivalent.
+    - `ddev exec -d /var/www/html/web "../vendor/bin/phpunit -v -c ./core/phpunit.xml.dist ./core/modules/system/tests/src/FunctionalJavascript/FrameworkTest.php"`
+  - Nightwatch
+    - `ddev exec -d /var/www/html/web/core yarn install` (do this once)
+    - `ddev exec -d /var/www/html/web/core touch .env` ((do this once))
+    - `ddev exec -d /var/www/html/web/core yarn test:nightwatch tests/Drupal/Nightwatch/Tests/exampleTest.js`
+  - Drupal Test Traits
+    - Ensure you have a working site that has the `weitzman/drupal-test-traits` Composer package.
+    - `ddev exec -d /var/www/html/web "../vendor/bin/phpunit --bootstrap=../vendor/weitzman/drupal-test-traits/src/bootstrap-fast.php --printer '\Drupal\Tests\Listeners\HtmlOutputPrinter' ../vendor/weitzman/drupal-test-traits/tests/ExampleSelenium2DriverTest.php"`
 - On your host, browse to https://[DDEV SITE URL]:7910 (password: `secret`) to watch tests run (neat!).
 
 ## Contribute