Unrealistic spdxIds in Example

[maxhbr]

The example contains unrealistic spdxIds and @ids which are probably not globally unique. This causes a wrong expectation and might lead to wrong usage.

spdx-spec/examples/jsonld/package_sbom.json

Line 28 in 5c117e8

"spdxId": "http://spdx.example.com/Document1",

I would suggest to add UUIDs to the url.

I do not know what the best convention for the hostname of the URL are.