fix demo by updating the domain

[chaoranxie]

fix demo by updating the domain

The current demo is broken, you can check it here

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[chaoranxie]

I signed it!

[googlebot]

CLAs look good, thanks!

[chaoranxie]

@samuelli is there anything else i need to do to get this merged?

[samuelli]

The API key may also need to be updated, not sure. You need someone with powers to merge it! cc/ @ebidel @e111077

[e111077]

@samuelli I have control over the API key and don't know who owns it.

[samuelli]

@ebidel owns the key