Update 'README.md'

README.md

@@ -1 +1,18 @@
 # PHP code analysis for drone pipline
+
+### Usage
+```yml
+  - name: code-inspection
+    image: hub.codefirst.iut.uca.fr/alexandre.agostinho/codefirst-dronesonarplugin-php
+    secrets: [ SECRET_SONAR_LOGIN ]
+    environment:
+      sonar_host: https://codefirst.iut.uca.fr/sonar/
+      sonar_token:
+        from_secret: SECRET_SONAR_LOGIN
+      project_key: << your:project:key >>
+      source_folder: << your/source/folder >>
+      test_folder: << your/test/folder >>
+    commands:
+      - phpunit --coverage-clover=coverage.xml --coverage-filter $${source_folder} $${test_folder}
+      - sonar-scanner -Dsonar.host.url=$${sonar_host} -Dsonar.login=$${sonar_token} -Dsonar.php.coverage.reportPaths="coverage.xml" -Dsonar.projectKey=$${project_key} -Dsonar.coverage.exclusions="$${test_folder}/**"
+```