npm module needs tidying for use

[mixmix]

Haven't surveyed them all, but for this module : https://www.npmjs.com/package/@spruceid/didkit-wasm

It needs

• a license - without this it's not safe to install and use
• a homepage + repo reference
• a readme which tells you how to use it
  • I don't need to know how to build it as the first thing I read, I want to know what API this thing has
  • you could link to your other docs over at https://spruceid.dev/docs/didkit/