From ed389479f53da1816bbb31437774ac8c3d13242b Mon Sep 17 00:00:00 2001
From: thosakwe <thosakwe@gmail.com>
Date: Thu, 15 Jun 2017 22:11:27 -0400
Subject: [PATCH] Update README

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 0d3b019c..4edda4a9 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ Transformers are supported by `VirtualDirectory` and `CachingVirtualDirectory`.
 
 To create a transformer:
 ```dart
-class MinifierTransformer {
+class MinifierTransformer extends FileTransformer {
   /// Use this to declare outputs, and indicate if your transformer
   /// will compile a file.
   @override