`README` snippet

[rvvincelli]

Hi,

Thanks a lot for this clever caching making good use of Flask caching, the dogpile caching documented in the SQLAlchemy docs is rather poor and hazy to understand.

I think in the snippet it would be clearer to have:

cache = Cache(app, config={'CACHE_TYPE': 'simple'})

otherwise as you know caching is disabled actually.

Cheers,