Importing React for the first example.

[devrchancay]

Importing react in the example to have consistency in relation to the others.

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[JoeCortopassi]

@devrchancay looks good to me. This just fixes the omission from the first example to make it consistent with the examples directly below it

[devrchancay]

@gaearon good to merge for consistency?

[threepointone]

Seems reasonable to me, I'm going to approve/merge this in. Thanks @devrchancay!