[GitHub] incubator-weex-site issue #173: Update integrate-devtool-to-ios.md

[erha19]

Github user erha19 commented on the issue:

    https://github.com/apache/incubator-weex-site/pull/173
  
    
![image](https://user-images.githubusercontent.com/9823838/42312534-2081a5b2-8073-11e8-94bf-f43cdde21f39.png)



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