Docs for registering new user needs updating

[bigdoods]

Step 0:

• I've read the contribution guidelines!

Expected Behaviour

How things should actually work!

First thing I do when I start a new server is register a user. I should copy code snippet from docs and it just works.

Actual Behaviour

What's actually going on!

The inputBody does not have a "password" key and thus the request fails with message "passwords are necessary evil..."

Affected Projects

Does this issue propagate to other dependencies or dependants? If so, list them here!

Probably not

Reproduction Steps & System Config (win, osx, web, etc.)
Any client using docs as reference

Proposed Solution (if any)

Update docs to indicate that a password key is required when creating a user