**BUG**
Steps to reproduce bug:
1. Click on `How to use team function`
![enter image description here][1]
which should link to:
https://easyeda.com/Doc/Tutorial/new-v-4.1.1.htm#Work-as-a-team
Results:
![enter image description here][2]
Expected results:
Link to:
https://easyeda.com/Doc/Tutorial/new-v-4.1.1.htm#Work-as-a-team
Browser: Any
[1]: /editor/20170905/59ae915572a8e.png
[2]: /editor/20170905/59ae91c00b01c.png
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
