Added a config to directly use top level keys as parameters

[gido]

My usecase is the following: Some of apps I'm working on are using YAML file to store config without having a single top-level keys (like parameters or config). And I would be happy to be able to use this handy scripts (without the need to change the way we are structuring our config file).

I don't know, maybe this is a bit too far away of the original idea of this library...

[WouterSioen]

+1 This could be helpful for me

[takeit]

that would work for me too 👍

@stof is there any update on this, are there any objections to not merge it or is there maybe another way to do it?

[DAcodedBEAT]

bump. there there any reason to not allow this functionality @stof?