Fix a few Pub health issues (#15)

* Add badges

* Prep for release + longer description

* Update CHANGELOG.md
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 302c8d3..d6cdc28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.5
+
+* Update package metadata & add `example/` folder
+
 ## 1.0.4
 
 * Now requires Dart 2.
diff --git a/README.md b/README.md
index 3a314ce..c073fab 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+[![Pub Package](https://img.shields.io/pub/v/boolean_selector.svg)](https://pub.dev/packages/boolean_selector)
+[![Build Status](https://travis-ci.org/dart-lang/boolean_selector.svg?branch=master)](https://travis-ci.org/dart-lang/boolean_selector)
+
 The `boolean_selector` package defines a simple and flexible syntax for boolean
 expressions. It can be used for filtering based on user-defined expressions. For
 example, the [`test`][test] package uses boolean selectors to allow users to
diff --git a/pubspec.yaml b/pubspec.yaml
index 2f5cfba..9b36986 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: boolean_selector
-version: 1.0.5-dev
-description: A flexible syntax for boolean expressions.
+version: 1.0.5
+description: A flexible syntax for boolean expressions, based on a simplified version of Dart's expression syntax.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/boolean_selector