Exit strategy: new information on exits for the Shanghai Metropedia

We've added a new feature to the Metropedia pages for the Shanghai Metro. You can now see basic exit information, so you can check which road to exit onto. Here's an example for South Shaanxi Road:

This is a test for now, so you'll only see the exit data for Shanghai, and only for English. We'll be looking at improved ways to show this information in our mobile apps too. Let us know if you have any feedback!