Restore white space in English

public/docs/ts/latest/guide/displaying-data.jade

@@ -58,7 +58,7 @@ figure.image-display
 
 :marked
   Then modify the <ngio-ex path="app.component.ts"></ngio-ex> file by
-  changing the template and the body of the component.
+  changing the template and the body of the component.  
 
   然后，到`app.component.ts`文件中修改组件的模板和代码。
 
@@ -101,7 +101,7 @@ figure.image-display
 .l-sub-section
   :marked
     More precisely, the redisplay occurs after some kind of asynchronous event related to
-    the view, such as a keystroke, a timer completion, or a response to an HTTP request.
+    the view, such as a keystroke, a timer completion, or a response to an HTTP request.    
 
     严格来说，“重新显示”是在某些与视图有关的异步事件之后发生的，比如：按键、定时器完成或对HTTP请求的响应。
 
@@ -217,7 +217,7 @@ figure.image-display
 .alert.is-important
   :marked
     Don't forget the leading asterisk (\*) in `*ngFor`. It is an essential part of the syntax.
-    For more information, see the [Template Syntax](./template-syntax.html#ngFor) page.
+    For more information, see the [Template Syntax](./template-syntax.html#ngFor) page.    
 
     不要忘记`*ngFor`中的前导星号（\*）。它是语法中不可或缺的一部分。
     要了解关于此语法和`ngFor`的更多知识，请参见[模板语法](./template-syntax.html#ngFor)一章。