fix: <Children> tag in Paragraph

structnodes.go

@@ -13,11 +13,18 @@ type ParagraphChild struct {
 
 type Paragraph struct {
 	XMLName  xml.Name         `xml:"http://schemas.openxmlformats.org/wordprocessingml/2006/main p"`
-	Children []ParagraphChild // Children will generate an unnecessary tag <Children> ... </Children> but we have no other choice
+	Children []ParagraphChild // Children will generate an unnecessary tag <Children> ... </Children> and we skip it by a self-defined xml.Marshaler
 
 	file *Docx
 }
 
+func (p *Paragraph) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+	for _, c := range p.Children {
+		e.EncodeElement(c, start)
+	}
+	return nil
+}
+
 func (p *Paragraph) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
 	children := make([]ParagraphChild, 0, 64)
 	for {