Update Travis badges on the READMEs

README.md

 Flutter
 =======
+-[![Build Status](https://travis-ci.org/flutter/flutter.svg?branch=master)](https://travis-ci.org/flutter/flutter)
 
 Flutter is a new way to build high-performance, cross-platform mobile apps.
 Flutter is optimized for today's, and tomorrow's, mobile devices. We are

packages/newton/README.md

 # Newton
-[![Build Status](https://travis-ci.org/flutter/newton.svg?branch=master)](https://travis-ci.org/flutter/newton)
-[![Coverage Status](https://coveralls.io/repos/domokit/newton/badge.svg?branch=master)](https://coveralls.io/r/domokit/newton?branch=master)
 
 Simple Physics Simulations for Dart. Springs, friction, gravity, etc.
 
 To run the tests:
-pub get
-dart test/newton_test.dart
+
+- pub get
+- pub run test