Update CodeSystem\rejected-reasons-bars

Corrected XML version to 1.0

Author: KazeemHamzat

CodeSystem/rejected-reasons-bars.xml

@@ -1,4 +1,4 @@
-<?xml version="1.1" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <CodeSystem xmlns="http://hl7.org/fhir">
     <id value="rejected-reasons-bars"/>
     <url value="https://fhir.nhs.uk/CodeSystem/rejected-reasons-bars"/>
@@ -24,6 +24,7 @@
     <copyright value="Copyright © 2022 NHS England" />
     <caseSensitive value="true"/>
     <content value="complete"/>
+    <!-- Rejected Reasons -->
     <concept>
         <code value="RRNA" />
         <display value="Requested resource not available within timescale" />