Cyclic JSON schema References Reproduction

This repo is reproduction for: adobe/jsonschema2md#185

How to reproduce

1. git clone ...
2. npm i
3. npm test

Result:

npm test

> cyclic-schemas-test@1.0.0 test .../dev/cyclic-schemas-test
> jsonschema2md -o docs/ -x docs/ -d schemas/ -e json

loading schemas
# CLI freezes at this point