Changelog in online docs isn't using version aware sorting

[dotasek]

To Reproduce

Go to: https://hapifhir.io/hapi-fhir/docs/introduction/table_of_contents.html

Note that 6.10.x versions are placed out of order, as they should be higher up in the list, just under 7.0.0:

...
1.1.11 | HAPI FHIR 6.6.0 (Xenon)
1.1.12 | HAPI FHIR 6.4.1 (Vishwa)
1.1.13 | HAPI FHIR 6.2.5 (Vishwa)
1.1.14 | HAPI FHIR 6.2.4 (Vishwa)
1.1.15 | HAPI FHIR 6.2.3 (Vishwa)
1.1.16 | HAPI FHIR 6.10.1 (Zed)
1.1.17 | HAPI FHIR 6.10.0 (Zed)

Expected behavior The ordering should be by version number, decreasing down the list.

[dotasek]

This was initially reported by @jkiddo