Timeout example leave -> exit (reactjs#96)

paradoxxxzero · jquense · commit 22bc1c09de82 · 2017-07-07T09:30:22.000-04:00
diff --git a/src/Transition.js b/src/Transition.js
@@ -340,7 +340,7 @@ Transition.propTypes = {
    * ```jsx
    * timeout={{
    *  enter: 300,
-   *  leave: 500,
+   *  exit: 500,
    * }}
    * ```
    *
