Added a new cookbook: epics with redux-observable (#159)
Added a new cookbook: epics with redux-observable (#159)

* Added a new cookbook: Epics with redux-observable

* Minor fixes to README.md

- fixed two typos
- removed pointless `.toPromise()` call in the middleware example

angular-redux/store,wbuchwalter/ng2-redux,angular-redux/ng2-redux,angular-redux/store,angular-redux/ng2-redux