Update the "host" without sub-path and move it to "basepath".

[msarm]

Swagger Host definition:
The host (name or IP) serving the API. This MUST be the host only and does not include the scheme nor sub-paths. It MAY include a port. If the host is not included, the host serving the documentation is to be used (including the port).

Current:

"host": "fhir3.healthintersections.com.au/open",
    "basePath": "/",

Expected:

"host": "fhir3.healthintersections.com.au",
    "basePath": "/open",