fix logging

pkg/mark/ancestry.go

@@ -57,6 +57,7 @@ func EnsureAncestry(
 	}
 
 	log.Debugf(
+		nil, 
 		"empty pages under %q to be created: %s",
 		parent.Title,
 		strings.Join(rest, ` > `),

pkg/mark/mark.go

@@ -48,6 +48,7 @@ func ResolvePage(
 		path = append(path, meta.Title)
 
 		log.Debugf(
+			nil,
 			"resolving page path: ??? > %s",
 			strings.Join(path, ` > `),
 		)