Doc typo

[cfjedimaster]

On JSX In Depth (http://facebook.github.io/react/docs/jsx-in-depth.html), there is a small typo:

"To render a React Component, just a local variable that starts with an upper-case letter:"

You probably want:

"To render a React Component, just use a local variable that starts with an upper-case letter:"

[zpao]

Thanks for the heads up. #2679 took care of it and will go out in the next website update.