update godoc badge
diff --git a/README.md b/README.md
index 5d2ab27..89454d6 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-# errors ![GoDoc](https://godoc.org/github.com/pkg/errors?status.png)
+# errors [![GoDoc](https://godoc.org/github.com/pkg/errors?status.png)](http://godoc.org/github.com/pkg/errors)