Way to set page margins

[estronnom]

Is there any possible way to set page margins (w:pgMar)?

[fumiama]

It's unable now, but can be added by a struct definition like

go-docx/structsect.go

Lines 27 to 30 in 23dde4f

	type SectPr struct {
	XMLName xml.Name `xml:"w:sectPr,omitempty"` // properties of the document, including paper size
	PgSz *PgSz `xml:"w:pgSz,omitempty"`
	}