moved china link into tab

Author: duongau

articles/expressroute/expressroute-locations.md

@@ -263,10 +263,10 @@ Azure national clouds are isolated from each other and from the Azure public clo
 | **China Unicom** | &check; | &cross; | Beijing2<br/>Shanghai2 |
 | **[GDS](http://www.gds-services.com/en/about_2.html)** |&check; |&cross; |Beijing2<br/>Shanghai2 |
 
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 To learn more, see [ExpressRoute in China](https://www.azure.cn/home/features/expressroute/).
 
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 ## Connectivity through Exchange providers
 
 If your connectivity provider isn't listed in previous sections, you can still create a connection.