Generated Narrative: CodeSystem guide-page-generation

This case-sensitive code system http://hl7.org/fhir/guide-page-generation defines the following codes:

CodeDisplayDefinition
html HTMLPage is proper xhtml with no templating. Will be brought across unchanged for standard post-processing.
markdown MarkdownPage is markdown with templating. Will use the template to create a file that imports the markdown file prior to post-processing.
xml XMLPage is xml with templating. Will use the template to create a file that imports the source file and run the nominated XSLT transform (see parameters) if present prior to post-processing.
generated GeneratedPage will be generated by the publication process - no source to bring across.
<status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="A code that indicates how the page is generated."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/guide-page-generation"/><content value="complete"/><concept><code value="html"/><display value="HTML"/><definition value="Page is proper xhtml with no templating. Will be brought across unchanged for standard post-processing."/></concept><concept><code value="markdown"/><display value="Markdown"/><definition value="Page is markdown with templating. Will use the template to create a file that imports the markdown file prior to post-processing."/></concept><concept><code value="xml"/><display value="XML"/><definition value="Page is xml with templating. Will use the template to create a file that imports the source file and run the nominated XSLT transform (see parameters) if present prior to post-processing."/></concept><concept><code value="generated"/><display value="Generated"/><definition value="Page will be generated by the publication process - no source to bring across."/></concept></CodeSystem>