Fix URLs in readme
diff --git a/README.md b/README.md
index e710426..03fa33c 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
## Proxy for Shelf
-[![Build Status](https://drone.io/github.com/dart-lang/shelf_proxy/status.png)](https://drone.io/github.com/dart-lang/shelf_proxy/latest)
+[![Build Status](https://travis-ci.org/dart-lang/shelf_proxy.svg?branch=master)](https://travis-ci.org/dart-lang/shelf_proxy)
`shelf_proxy` is a [Shelf][] handler that proxies requests to an external
server. It can be served directly and used as a proxy server, or it can be
mounted within a larger application to proxy only certain URLs.
-[Shelf]: http://pub.dartlang.org/packages/shelf
+[Shelf]: https://pub.dev/packages/shelf
```dart
import 'package:shelf/shelf_io.dart' as shelf_io;