code: func NewCSV(writer io.Writer, fileName string, hasHeader bool) (*Table, error) {
  	file, err := os.Open(fileName)
  	if err != nil {
  		return &Table{}, err
  	}
  	defer file.Close()
  	csvReader := csv.NewReader(file)
  	t, err := NewCSVReader(writer, csvReader, hasHeader)
  	return t, err
  }
docs: // Start A new table by importing from a CSV file
  // Takes io.Writer and csv File name