code: func ReadFile(name string) ([]byte, error) {
  	fs, err := fs.New()
  	if err != nil {
  		return nil, ErrOpenFS
  	}
  
  	file, err := fs.Open(name)
  	if err != nil {
  		return nil, ErrOpenFile
  	}
  	defer file.Close()
  
  	data, err := ioutil.ReadAll(file)
  	if err != nil {
  		return nil, ErrReadFile
  	}
  
  	return data, nil
  }
docs: // ReadFile reads a file content from the embedded filesystem.