Clearer Documentation regarding Usage

[micnguyen]

Hi,

Thanks for the library. I am a big fan of it. I am a little confused about how to use it though.

The README mentions that we should use RNAsyncStorageFlipper(AsyncStorage) - but do we do this just once, or do we run this every time we want to update the reading from the Database? Because I do it once in App.js and the values never update.

Thanks.

[Fausto95]

We should only do it once, and as mentioned in #12, a Refresh button would fix this issue.

[micnguyen]

I see. That makes sense. I'll see if I can find some free time to add the PR as well. Thanks for the plugin.