review: component-communication, testing, upgrade: fixes.

public/docs/ts/latest/cookbook/component-communication.jade

@@ -256,8 +256,7 @@ parent-to-child-local-var
     
   父组件不能使用数据绑定来读取子组件的属性或调用子组件的方法。但可以在父组件模板里，新建一个本地变量来代表子组件，然后利用这个变量来读取子组件的属性和调用子组件的方法，如下例所示。
 
-  <a id="countdown-timer-example"></a>
-  
+  <a id="countdown-timer-example"></a>  
   We have a child `CountdownTimerComponent` that repeatedly counts down to zero and launches a rocket. It has `start` and `stop` methods that control the clock and it displays a countdown status message in its own template.  
   
   子组件`CountdownTimerComponent`进行倒计时，归零时发射一个导弹。`start`和`stop`方法负责控制时钟并在模板里显示倒计时的状态信息。  

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

@@ -3,6 +3,8 @@
     We are still preparing the testing guide with all the new testing features
     introduced in RC5 and will update it very soon.
 
+    我们应用所有RC5引进的新测试特征来编写新的测试指南，将会在不久的将来更新本章。
+
 :marked
   We write **unit tests** to explore and confirm the **behavior** of parts of our application.
 

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

@@ -5,6 +5,8 @@ include ../_util-fns
     This guide is still in the process of being updated to RC5 and it's samples
     may not work correctly.
 
+    我们正在为RC5更新本指南，目前本指南中的例子暂时不会正常运行。
+
 :marked
   Having an existing Angular 1 application doesn't mean that we can't
   begin enjoying everything Angular 2 has to offer. That's because Angular 2