README.md in mongoid-shell-0.3.0 vs README.md in mongoid-shell-0.4.0

@@ -1,8 +1,13 @@
-Mongoid::Shell [![Build Status](https://travis-ci.org/dblock/mongoid-shell.png?branch=master)](https://travis-ci.org/dblock/mongoid-shell)
+Mongoid::Shell
 ==============
 
+[![Gem Version](http://img.shields.io/gem/v/mongoid-shell.svg)](http://badge.fury.io/rb/mongoid-shell)
+[![Build Status](http://img.shields.io/travis/dblock/mongoid-shell.svg)](https://travis-ci.org/dblock/mongoid-shell)
+[![Dependency Status](https://gemnasium.com/dblock/mongoid-shell.svg)](https://gemnasium.com/dblock/mongoid-shell)
+[![Code Climate](https://codeclimate.com/github/dblock/mongoid-shell.svg)](https://codeclimate.com/github/dblock/mongoid-shell)
+
 Create mongo command-lines from Mongoid configuration.
 
 For example, connect to your production database without having to remember the entire command line using a `db:production:shell` Rake task.
 
 ``` ruby
@@ -28,9 +33,14 @@
 ``` ruby
 out = File.join(Dir.tmpdir, 'db_backup')
 mongodump = Mongoid::Shell::Commands::Mongodump.new(db: 'another_database', out: out)
 system mongodump.to_s # mongodump --db another_database --out /tmp/db_backup
 ```
+
+Compatibility
+-------------
+
+This gem supports Mongoid 3, 4 and 5.
 
 Supported Commands
 ------------------
 
 ### Mongo