Fix minor lint warning
diff --git a/lib/chroot.dart b/lib/chroot.dart
index ddac288..56d2bd5 100644
--- a/lib/chroot.dart
+++ b/lib/chroot.dart
@@ -2,5 +2,5 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/// A file system that provides a view into _another_ [FileSystem] via a path.
+/// A file system that provides a view into _another_ `FileSystem` via a path.
 export 'src/backends/chroot.dart';