Doc-generator - supplemental schema details not included in common-properties

[jautor]

Supplemental text (inserted either via the JSON file or individual schema-specific markdown) for "common property" schemas or fragments are not picked up by the tool. For example, placing supplemental data on HealthRollUp in the common Status table mention does not get incorporated, even though the "property details" for Status is auto-generated.

This was likely not considered when the tool was developed, so consider it an enhancement.