Update, remove the duplicated

Author: wyudong

README-en.md

@@ -19,8 +19,8 @@ Join the group on QQ 591724180.
 **Tutorials:**
 
 - [Wiki](https://github.com/PanJiaChen/vue-element-admin/wiki)
-- [Step by step instructions on playing with backend using Vue - Part 1](https://juejin.im/post/59097cd7a22b9d0065fb61d2)
-- [Step by step instructions on playing with backend using Vue - Part 2](https://juejin.im/post/591aa14f570c35006961acac)
+- [Step by step instructions on playing with backend using Vue Part 1 - Fundamentals](https://juejin.im/post/59097cd7a22b9d0065fb61d2)
+- [Step by step instructions on playing with backend using Vue Part 2 - Login permission](https://juejin.im/post/591aa14f570c35006961acac)
 - [Step by step instructions on packaging a Vue component](https://segmentfault.com/a/1190000009090836)
 
 **Please read the Wiki and articles above before creating any issue. Feel free to contribute by making a pull request.**
@@ -129,16 +129,11 @@ Only status of user and app configuration is managed by Vuex. Other data are man
 
 ![](https://github.com/PanJiaChen/vue-element-admin/blob/master/gifs/leftmenu.gif)
 
-#### Drag & drop sorting
+#### Drag & drop table
 
 ![](https://github.com/PanJiaChen/vue-element-admin/blob/master/gifs/order.gif)
 
-#### Drag & drop sorting
-
-![](https://github.com/PanJiaChen/vue-element-admin/blob/master/gifs/order.gif)
-
-
-#### dynamic table
+#### Interactive table
 
 ![](https://github.com/PanJiaChen/vue-element-admin/blob/master/gifs/dynamictable.gif)