Debug redux-observable with redux dev-tools

Being just another redux-middleware, we can take advantage of existing tools created by the large redux community. Arguably the most valuable & popular amongst these is the rev-tools extension that allows visibility into the lifecycle of the redux store. https://chrome.google.com/webstore/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd?hl=en