docs(architecture): small tweaks

closes #1101

Author: unexge

public/docs/ts/latest/guide/architecture.jade

@@ -26,8 +26,8 @@ figure
   1. [Template](#template)
   1. [Metadata](#metadata)
   1. [Data Binding](#data-binding)
+  1. [Directive](#directive)  
   1. [Service](#service)
-  1. [Directive](#directive)
   1. [Dependency Injection](#dependency-injection)
 
   Learn these eight and we're on our way.
@@ -492,8 +492,8 @@ figure
   1. [Template](#template)
   1. [Metadata](#metadata)
   1. [Data Binding](#data-binding)
-  1. [Service](#service)
   1. [Directive](#directive)
+  1. [Service](#service)
   1. [Dependency Injection](#dependency-injection)
 
   That's a foundation for everything else in an Angular application
@@ -525,7 +525,7 @@ figure
 
   >**[Forms](forms.html)** - Support complex data entry scenarios with HTML-based validation and dirty checking.
 
-  >**HTTP** - Communicate with a server to get data, save data, and invoke server-side actions with this Angular HTTP client.
+  >**[HTTP](server-communication.html)** - Communicate with a server to get data, save data, and invoke server-side actions with this Angular HTTP client.
 
   >**[Lifecycle Hooks](lifecycle-hooks.html)** - We can tap into key moments in the lifetime of a component, from its creation to its destruction, 
   by implementing the "Lifecycle Hook" interfaces.