config.json possible values for some params

[calvintam236]

I tried to edit config.json params, and I don't know the possible values for some of the params. For example, what are the possible types here, and here.

[oliverw]

1. https://github.com/coinfoundry/miningcore/blob/master/src/MiningCore/Configuration/ClusterConfig.cs#L54
2. https://github.com/coinfoundry/miningcore/blob/master/src/MiningCore/Configuration/ClusterConfig.cs#L27

I agree those fields should be documented.

[calvintam236]

How about here? Is PPLNS is the only payoutScheme?

[oliverw]

PPLNS is currently the only implemented payout scheme because it's simply the most widely used one. Implementing other payout schemes should be straight forward.

[oliverw]

Relevant information have been added to README.md