Document Bind and friends

internal/bindgen/bind.go.tmpl

@@ -3,6 +3,8 @@
 {{end}}{{end}}{{end -}}
 
 {{define "func" -}}
+{{if eq . 1}}// Bind combines p with a parser created by f that depends on p's result value.
+{{- else}}// Bind{{.}} is equivalent to {{.}} nested calls to Bind.{{end}}
 func Bind{{.}}[In, Out{{range .Count}}, T{{.}}{{end}} any](
 	p Parser[In, T],
 {{template "fparams" .}}) Parser[In, Out] {