code: function installed(){
      findUp('README.*')
      .then(function(filepath){
          if(filepath === null){
              return process.cwd();
          }else{
              return path.resolve(filepath[0], '../');
          }
      })
      .then(function(parent){
          return config.readLocal(parent);
      })
      .then(data => {
          if(data.installed.length === 0){
              console.log(chalk.bold('No badges installed.'));
          }else{
              // console.log(chalk.bold.underline(`Installed(${data.installed.length}):`));
              _.each(data.installed, i => { console.log(i) });
              console.log(chalk.bgBlue.bold(`Total: ${data.installed.length} `))
          }
      });
  }
docs: List installed badges, based on .badge.json