updated readme

README.md

@@ -20,4 +20,20 @@ uses: monstar-lab-oss/sonarqube-github-action@v1
 with:
   url: ${{ secrets.SONARQUBE_URL }}
   token: ${{ secrets.SONARQUBE_TOKEN }}
+```
+
+## SonarQube Analysis Parameters
+Except 'sonar.host.url' and 'sonar.login' you can have your project configuration file 'sonar-project.properties' for sonar scanner in root directory of your project repo.
+
+Please make sure your run the unit tests before running the sonar scanner to generate the code coverage report.
+
+Example : sonar-project.properties
+```bash
+sonar.language=php
+sonar.php.tests.reportPath=tests/report/junit.xml
+sonar.php.coverage.reportPaths=tests/report/coverage.xml
+sonar.projectKey=example-project
+sonar.projectName=example-project
+sonar.sources=./app
+sonar.sourceEncoding=UTF-8
 ```