func NewConverter() *Converter {
	return NewConverterWithOptions()
}
NewConverter creates a new Converter. By default, no options are applied.
package kepub
import (
	"context"
	"math"
)
type Converter struct {
	extraCSS      []string
	extraCSSClass []string
	smartypants bool
	find    [][]byte
	replace [][]byte
	dummyTitlepageForce      bool
	dummyTitlepageForceValue bool
}
type ConverterOption func(*Converter)