code: async function getProjectToken (tokenPath, config) {
    var token;
    try {
      token = await fs.readFile(tokenPath, { encoding: 'utf-8' });
    } catch (err) {
      let deployment = await request.post({
        url: urljoin(IDYLL_PUB_API, 'create'),
        body: {
          name: config.name
        },
        json: true
      });
      token = deployment.token;
      await fs.writeFile(tokenPath, token, { encoding: 'utf-8' });
    }
    return token;
  }
docs: Try to read the project token from the .idyll directory.
  If it does not exist, create/save one into .idyll/token.