Created basic business viewable feature

I created a cucumber story for business viewability. I’ve simply tested
that users should be able to view business pages and those pages should
have names and descriptions.
Fixed a bug in the flashes partial view

A bug was created in the flashes partial when converting to slim from
erb. I have preemptively fixed the bug.
Added show to businesses

I added the show method and views to the business controller to comply
with the viewable cucumber feature. Users can now view businesses. A
business view page consists of a name and a description.
Merge branch 'User-should-be-able-to-view-businesses'