README.md in helios-0.2.2

- old
+ new

@@ -74,11 +74,11 @@
 require 'bundler'
 Bundler.require
 
 run Helios::Application.new do
   service :data, model: 'path/to/DataModel.xcdatamodel'
-  service :push_notification
+  service :push_notification, apn_certificate: 'path/to/apple_push_notification.pem', apn_environment: 'development'
   service :in_app_purchase
   service :passbook
 end
 ```
 
@@ -100,11 +100,11 @@
 #### config/application.rb
 
 ```ruby
 config.middleware.use Helios::Application do
   service :data, model: 'path/to/DataModel.xcdatamodel'
-  service :push_notification
+  service :push_notification, apn_certificate: 'path/to/apple_push_notification.pem', apn_environment: 'development'
   service :in_app_purchase
   service :passbook
 end
 ```
 
@@ -162,10 +162,14 @@
   </tr>
   <tr>
     <td><tt>DELETE /devices/:token</tt></td>
     <td>Unregister a device from receiving push notifications</td>
   </tr>
+  <tr>
+    <td><tt>POST /message</tt></td>
+    <td>Send out a push notification to some devices</td>
+  </tr>
 </table>
 
 ---
 
 `in_app_purchase`: Adds an endpoint for iOS in-app purchase receipt verification endpoints, as well one for returning product identifiers.
@@ -264,10 +268,16 @@
 
 To run Helios in development mode on `localhost`, run the `server` command:
 
     $ helios server
 
+### Testing Push Notifications
+
+Once you have registered a device and set up your certificate, try this:
+
+    $ curl -X POST -d 'payload={"aps": {"alert":"Blastoff!"}}' http://localhost:5000/message
+
 ### Running the Helios Console
 
 You can start an IRB session with the runtime environment of the Helios application with the `console` command:
 
     $ helios console
@@ -308,9 +318,24 @@
     } failure:^(NSError *error) {
         NSLog(@"Registration Error: %@", error);
     }];
 }
 ```
+
+### Converting Your Push Notification Certificate
+
+> These instructions come from the [APN on Rails](https://github.com/PRX/apn_on_rails) project.
+
+Once you have the certificate from Apple for your application, export your key
+and the apple certificate as p12 files. Here is a quick walkthrough on how to do this:
+
+1. Click the disclosure arrow next to your certificate in Keychain Access and select the certificate and the key. 
+2. Right click and choose `Export 2 items…`. 
+3. Choose the p12 format from the drop down and name it `cert.p12`.
+
+Now covert the p12 file to a pem file:
+
+    $ openssl pkcs12 -in cert.p12 -out apple_push_notification.pem -nodes -clcerts
 
 ## Coming Attractions
 
 There's still a lot to do to make Helios even better. Here are some ideas that are at the top of the list:
 