Tweaks to README (#424)

diff --git a/README.md b/README.md
index d9ce97d..5fbfbe7 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,11 @@
-# Protobuf support for dart
+# Protobuf support for Dart
 
-[![Build Status](https://travis-ci.org/dart-lang/protobuf.svg?branch=master)](https://travis-ci.org/dart-lang/protobuf)
+[Protocol Buffers](https://developers.google.com/protocol-buffers) (protobuf)
+are Google's language-neutral, platform-neutral, extensible mechanism for
+serializing structured data.
 
-This repository is home to packages related to support for the protobuf format for dart.
+This repository is home to packages related to [protobuf for Dart](https://pub.dev/documentation/protobuf/latest/).
 It contains:
 
- - [protoc_plugin](protoc_plugin/) A dart back-end for the protoc compiler.
+ - [protoc_plugin](protoc_plugin/) A Dart back-end for the protoc compiler.
  - [protobuf](protobuf/) Support library for the generated code.