(Docs): Better explain about $meteor.object selector

Show that $meteor.object selector gets a selector as the second parameter and not just ID.
Addresses Urigo#273

Author: Urigo

.docs/angular-meteor/client/views/api/api.meteorObject.html

@@ -11,12 +11,14 @@
 # $meteor.object
 
 A service that wraps a Meteor object to enable reactivity within AngularJS.
+Finds the first document that matches the selector, as ordered by sort and skip options.
+Wraps [collection.findOne](http://docs.meteor.com/#/full/findone)
 
 ----
 
 ## Usage
 
-    $meteor.object(collection, id, auto)
+    $meteor.object(collection, selector, auto)
 
 ### Arguments
 
@@ -43,9 +45,12 @@
   <td></td>
 </tr>
 <tr>
-  <td>id</td>
-  <td><a href="" class="label type-hint type-hint-string">string</a></td>
-  <td><p>The Id of the object to bind to</p></td>
+  <td>selector</td>
+  <td><a href="" class="label type-hint type-hint-string">Mongo Selector, Object ID, or String</a></td>
+  <td><p>A query describing the documents to find or just the ID of the document.
+    $meteor.object will find the first document that matches the selector,
+	  as ordered by sort and skip options, exactly like Meteor's <a href="http://docs.meteor.com/#/full/findone">collection.findOne</a>
+  </p></td>
   <td><a href="" class="label type-hint type-hint-array">Yes</a></td>
   <td></td>
 </tr>
@@ -106,6 +111,9 @@
             $scope.partyNotAuto.reset();
           };
 
+          // Query selector example
+          $scope.partyOfUser = $meteor.object(Parties, {userId: Meteor.userId()});
+
       }]);
     }
 

.docs/angular-meteor/client/views/steps/tutorial.step_06.html

@@ -43,6 +43,15 @@ <h1>Step 6 - Bind one object</h1>
 
 $meteor.object returns an [AngularMeteorObject](/api/meteorObject) that contains the data.
 
+$meteor.object accepts a selector as the second argument.
+
+That selector can be Mongo Selector, Object ID, or String.
+
+In our example we used the Object's ID but it can also come in the form of {field: query}.
+
+$meteor.object will find the first document that matches the selector,
+as ordered by sort and skip options, exactly like Meteor's [collection.findOne](http://docs.meteor.com/#/full/findone)
+
 
 # Template