SONARPHP-1572 Update readme of integration tests (#1342)

Author: GabinL21

its/README.md

@@ -8,24 +8,24 @@
 
 1. Make sure your Developer Box is properly setup (see xtranet)
 2. Configure Orchestrator settings as described [here](https://github.com/SonarSource/orchestrator#configuration). The Artifactory API key and GitHub token are the only mandatory options. The GH token is a Personal Access Token (classic) with the `repo` scope permission, and SSO properly configured
-3. Run `mvn clean install` a first time from this `its` folder so that test resources are built (like custom plugins)
+3. Run `./gradlew :its:build` a first time from the root folder so that test resources are built (like custom plugins)
 
 # Running ITs from IntelliJ
 
-1. From the root folder of the repository, first build sonar-php with `mvn clean install`. Without that the old JAR version from sonar-php-plugin/target will be used
+1. From the root folder of the repository, first build sonar-php with `./gradlew clean build`. Without that the old JAR version from sonar-php-plugin/build will be used
 2. Open a test class and run it
 
 # Running ITs from command line
 
-1. From the root folder of the repository, first build sonar-php with `mvn clean install`
-2. Run `mvn verify -f its/pom.xml -Dsonar.runtimeVersion=<SQ server version>`
+1. From the root folder of the repository, first build sonar-php with `./gradlew clean build`
+2. Run `./gradlew integrationTest -Dsonar.runtimeVersion=<SQ server version>`
 
 # Debug scanner in Integration tests
 
 To debug the Scanner in ITs set the `SONAR_SCANNER_DEBUG_OPTS` like this:
 
 ```java
-SonarScanner scanner = SonarScanner.create("projectDir")))
+SonarScanner scanner = SonarScanner.create("projectDir")
     .setEnvironmentVariable("SONAR_SCANNER_DEBUG_OPTS", "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=<port>");
 
 ORCHESTRATOR.executeBuild(scanner);