code: function readOptions(ctx) {
    var configFilePath = path.join(ctx.opts.projectRoot, 'config.xml');
    var configXmlContent = xmlHelper.readXmlAsJson(configFilePath, true);
  
    return parseConfig(configXmlContent);
  }
docs: region Public API 
  Read plugin options from config.xml.
  If none is specified - default options are returned.
  
  @param {Object} ctx - cordova context object
  @return {Object} plugin prefereces