Add (Formerly Redux-Simple-Router)

[adam8810]

It'd be nice to make it clearer that the name of this repo has changed. It threw me off when it no longer came up in searches. I wouldn't have known this was the repo if I hadn't noticed a single commit talking about changing everything to react-router-redux 😄

I'd be happy to submit a PR to add it to the README but it might just make more sense to add something in the Repo Description.