Added and corrected comments

inlineTextContent.go

@@ -12,6 +12,8 @@ type InlineTextContent struct {
 	Texts []string `xml:"texts,omitempty"`
 }
 
+// newInlineTextContent creates a new InlineTextContent. It returns a
+// *InlineTextContent and an error.
 func newInlineTextContent(mediaType string, content any) (*InlineTextContent, error) {
 	if mediaType != "text" && mediaType != "html" && mediaType != "" {
 		return nil, fmt.Errorf("media type %v incompatible with inline text content", mediaType)
@@ -36,12 +38,19 @@ func newInlineTextContent(mediaType string, content any) (*InlineTextContent, er
 	return &InlineTextContent{Type: mediaType, Texts: texts}, nil
 }
 
+// isContent checks whether the InlineTextContent is a Content. It returns a
+// bool.
 func (i *InlineTextContent) isContent() bool { return true }
 
+// hasSRC checks whether the InlineTextContent has a SRC attribute. It returns
+// a bool.
 func (i *InlineTextContent) hasSRC() bool { return false }
 
+// getType returns the Type of the InlineTextContent as a string.
 func (i *InlineTextContent) getType() string { return i.Type }
 
+// Check checks the InlineTextContent for incompatibilities with RFC4287. It
+// returns an error.
 func (i *InlineTextContent) Check() error {
 	if i.Type != "" && i.Type != "text" && i.Type != "html" {
 		return errors.New("type attribute of inline text content must be text or html if not omitted")