README.md in houston-2.1.0

- old
+ new

@@ -6,11 +6,11 @@
 
 In a production application, you will probably want to schedule or queue notifications into a background job. Whether you're using [queue_classic](https://github.com/ryandotsmith/queue_classic), [resque](https://github.com/defunkt/resque), or rolling you own infrastructure, integrating Houston couldn't be simpler.
 
 Another caveat is that Houston doesn't manage device tokens for you. For that, you should check out [Helios](http://helios.io)
 
-> Houston's is named for [Houston, TX](http://en.wikipedia.org/wiki/Houston), the metonymical home of [NASA's Johnson Space Center](http://en.wikipedia.org/wiki/Lyndon_B._Johnson_Space_Center), as in _Houston, We Have Liftoff!_.
+> Houston is named for [Houston, TX](http://en.wikipedia.org/wiki/Houston), the metonymical home of [NASA's Johnson Space Center](http://en.wikipedia.org/wiki/Lyndon_B._Johnson_Space_Center), as in _Houston, We Have Liftoff!_.
 
 > It's part of a series of world-class command-line utilities for iOS development, which includes [Cupertino](https://github.com/mattt/cupertino) (Apple Dev Center management), [Shenzhen](https://github.com/mattt/shenzhen) (Building & Distribution), [Venice](https://github.com/mattt/venice) (In-App Purchase Receipt Verification), and [Dubai](https://github.com/mattt/dubai) (Passbook pass generation).
 
 > This project is also part of a series of open source libraries covering the mission-critical aspects of an iOS app's infrastructure. Be sure to check out its sister projects: [GroundControl](https://github.com/mattt/GroundControl), [SkyLab](https://github.com/mattt/SkyLab), [houston](https://github.com/mattt/houston), and [Orbiter](https://github.com/mattt/Orbiter).
 
@@ -50,10 +50,10 @@
 If you want to manage your own persistent connection to Apple push services, such as for background workers, here's how to do it:
 
 ```ruby
 certificate = File.read("/path/to/apple_push_notification.pem")
 passphrase = "..."
-connection = Houston::Connection.new(APPLE_DEVELOPMENT_GATEWAY_URI, certificate, passphrase)
+connection = Houston::Connection.new(Houston::APPLE_DEVELOPMENT_GATEWAY_URI, certificate, passphrase)
 connection.open
 
 notification = Houston::Notification.new(device: token)
 notification.alert = "Hello, World!"
 connection.write(notification.message)