Document session helper.

session.md

@@ -24,10 +24,16 @@ The Laravel framework uses the `flash` session key internally, so you should not
 <a name="session-usage"></a>
 ## Session Usage
 
+The session may be accessed in several ways, via the HTTP request's `session` method, the `Session` facade, or the `session` helper function. When the `session` helper is called without arguments, it will return the entire session object. For example:
+
+	session()->regenerate();
+
 #### Storing An Item In The Session
 
 	Session::put('key', 'value');
 
+	session(['key' => 'value']);
+
 #### Push A Value Onto An Array Session Value
 
 	Session::push('user.teams', 'developers');
@@ -36,6 +42,8 @@ The Laravel framework uses the `flash` session key internally, so you should not
 
 	$value = Session::get('key');
 
+	$value = session('key');
+
 #### Retrieving An Item Or Returning A Default Value
 
 	$value = Session::get('key', 'default');