HTML diff of changes to FHIR rdf.html page

Attached are the diffs of changes to the FHIR rdf.html page, described in
https://jira.hl7.org/browse/FHIR-40269

(This work is a joint collaboration between the W3C Healthcare and Life 
Sciences community group and the HL7 Implementable Technology 
Specifications working group.)
https://confluence.hl7.org/pages/viewpage.action?pageId=66922543