Flexbox: correct example description (facebook#3284)

Author: EvertEt

docs/flexbox.md

@@ -16,7 +16,7 @@ The defaults are different, with `flexDirection` defaulting to `column` instead
 
 [`flex`](layout-props#flex) will define how your items are going to **“fill”** over the available space along your main axis. Space will be divided according to each element's flex property.
 
-In the following example, the red, yellow, and green views are all children in the container view that has `flex: 1` set. The red view uses `flex: 1` , the yellow view uses `flex: 2`, and the green view uses `flex: 3` . **1+2+3 = 6**, which means that the red view will get `1/6` of the space, the yellow `2/6` of the space, and the green `3/6` of the space.
+In the following example, the red, orange, and green views are all children in the container view that has `flex: 1` set. The red view uses `flex: 1` , the orange view uses `flex: 2`, and the green view uses `flex: 3` . **1+2+3 = 6**, which means that the red view will get `1/6` of the space, the orange `2/6` of the space, and the green `3/6` of the space.
 
 ```SnackPlayer name=Flex%20Example
 import React from "react";