Improve wallet/mintAsset documentation #596
Description
It would be nice to have additional information describing how to mint a new asset vs minting an existing asset. It's not very obvious that in order to mint a new asset, assetId (as part of the wallet/mintAsset request) should be null. It would be nice to have descriptions of each request parameter as bullet points (example). Within the assetId param description, it should be noted that in order to mint a new asset, assetId should be null.