Added information about docker setup

docker-compose.yml

@@ -24,3 +24,13 @@ services:
       - PHP_IDE_CONFIG=serverName=localhost
     volumes:
       - .:/app
+
+  node:
+    image: node:20
+    networks:
+      - app
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    working_dir: /app
+    volumes:
+      - .:/app

docs/CONTRIBUTING.md

@@ -2,42 +2,45 @@
 
 This document describes various tools used during development of this library.
 
+## Install
+
+To install the dependencies required for the development and usage of this
+library, run `composer install` through the supplied Docker Compose.
+
+```shell
+dokcer compose run --rm phpfpm composer install
+```
+
 ## Tests
 
 We use the [PHPUnit](https://phpunit.de/) testing framework.
 
 To run tests execute the following command:
 
 ```shell
-vendor/bin/phpunit --coverage-clover=coverage/unit.xml
+dokcer compose run --rm phpfpm vendor/bin/phpunit --coverage-clover=coverage/unit.xml
 ```
 
 ## Check coding standards
 
 The following commands let you test that the code follows the coding
 standards we decided to adhere to in this project.
 
-### PHP
-
 ```shell
-composer install
-composer coding-standards-check
+dokcer compose run --rm phpfpm composer coding-standards-check
 ```
 
-### Markdown
+### Check Markdown file
 
 ```shell
-yarn install
-yarn run coding-standards-check
+dokcer compose run --rm node yarn install
+dokcer compose run --rm node yarn run coding-standards-check
 ```
 
 ## Apply coding standards
 
-You can automatically fix some coding styles issues by running
-
-### PHP
+You can automatically fix some coding styles issues by running:
 
 ```shell
-composer install
-composer coding-standards-apply
+dokcer compose run --rm phpfpm composer coding-standards-apply
 ```