Merge branch '4090' into 'master'

updated readme

See merge request !8
2 jobs for master in 1 minute and 17 seconds (queued for 1 second)
Status Name Job ID Coverage
  Build
failed build #68176

00:01:17

 
  Test
skipped test #68177
 
Name Stage Failure
failed
build Build
[ERROR] Cannot resolve dependencies of MavenProject: org.fortiss.af3.rcp.bundle:org.fortiss.af3.rcp.application:2.19.0-SNAPSHOT @ /builds/af3/maven-releng/bundles/af3-rcp/org.fortiss.af3.rcp.application/.polyglot.build.properties: See log for details -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MavenExecutionException
Cleaning up file based variables
ERROR: Job failed: exit code 1