Update CHANGELOG.md

Author: MartinWheelerMT

CHANGELOG.md

@@ -8,9 +8,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-* When mapping `ReferralRequest` supporting info and `DiagnosticReports`m NHS PMIP Report Numbers can also be provided 
+* When mapping `ReferralRequest` supporting info and `DiagnosticReports` NHS PMIP Report Numbers can also be provided 
 with the code system as a URN (`urn:oid:2.16.840.1.113883.2.1.4.5.5`).
 
+### Fixed
+* When mapping physical quantities ("PQ") the produced XML now matches the HL7 XML specifications.
+
 ## [2.0.5] - 2024-07-04
 
 ### Fixed