Add configuration example (#7)

Author: dmolineus

README.md

@@ -3,3 +3,39 @@
 This plugin provides [phpcs](https://github.com/squizlabs/PHP_CodeSniffer) integration for phpcq.
 
 It also provides a "fix" option, which runs [phpcbf](https://github.com/squizlabs/PHP_CodeSniffer) on the code base.
+
+## Configuration
+
+
+Extend your `.phpcq.yaml.dist` configuration by adding the plugin and configuring the task:
+
+```yaml
+phpcq:
+  plugins:
+    phpcs:
+      version: ^1.0
+      signed: false
+
+tasks:
+  phpcs:
+    config: &phpcs-config
+      # By default, PSR12 is used
+      standard: ~
+      standard_paths:
+        - 'vendor/path/to/coding-standard'
+      excluded:
+        - 'some/excluded_path'
+      excluded_sniffs:
+        - 'Excludedniff'
+      # Define paths which should be loaded when PHPCS is bootstrapping.
+      # Useful for enhancement plugins which provides a coding standard
+      autoload_paths:
+        - 'vendor/autoload.php'
+
+  # The phpcbf tool is activated when activating the fix flag
+  phpcbf:
+    plugin: phpcs
+    config:
+      <<: *phpcs-config
+      fix: true
+```