Removes Need to Manually Define the DisplayName

JSX will set the displayName if we assign the React class to a variable.
Additionally, this allows us to interact with the variable after we
create the class if needed.

Simplifies example so it's not so confusing with a lot of Hello Worlds.
Merge pull request #1 from deseretdigital-ui/removeNeedOfDisplayName

Removes Need to Manually Define the DisplayName