Add documentation section regarding #13

[trubesv]

Use mismatching names for Thingy class and database collection

[coveralls]

Coverage remained the same at 100.0% when pulling 9d3238be543e8e5d1d29ab5f6582a427c06f29fd on trubesv:master into 470ce0df001cfb938c585149ad6d36a37919a72d on numberly:master.

[ramnes]

Yeah, you're right, that's better than nothing.

Could you rather organize things so that those examples are in the "Database/collection discovery" section directly?

I'd imagine one or more sub-sections where the idea would be "1/ look how it works 2/ but if you want to override it, you also can", or something like that.

[ramnes]

Thanks!