code: String getDocumentationDir() {
          String baseDir = project.getBuild().getDirectory();
          if (baseDir == null || new File(baseDir).exists()) {
              baseDir = project.getBasedir().getAbsolutePath();
              baseDir = baseDir + "/target";
              if (!new File(baseDir).exists()) {
                  //maven plugin declared in child module
                  baseDir = project.getBasedir().getAbsolutePath();
              }
          }
          if (!baseDir.endsWith("/")) {
              baseDir = baseDir + "/";
          }
  
          if (outputDir == null) {
              outputDir = "cukedoctor/";
          }
  
          if (!outputDir.endsWith("/")) {
              outputDir = outputDir + "/";
          }
  
          return baseDir + outputDir;
  
      }
docs: documentation is saved under ${buildDir}/cukedoctor folder