SSP Title Page and System Information section documentation updates

[Rene2mt]

This issue consolidates the remaining open documentation items that need to be resolved in GSA/fedramp-automation#804. Specifically, the following items need to be addressed:

Data	Location	Documentation Link	Documentation Notes	Example Updated
FedRAMP Package ID	//system-characteristics/system-id[@identifier-type="https://fedramp.gov"]	https://automate.fedramp.gov/documentation/ssp/4-ssp-template-to-oscal-mapping/#system-name-abbreviation-and-fedramp-unique-identifier	Needs identifier type value updated in exampleNeeds identifier type value updated in Allowed ValueNeeds identifier type value updated in queries	?
Authorization Path	//system-characteristics/prop[@name="authorization-type"]	https://automate.fedramp.gov/documentation/ssp/4-ssp-template-to-oscal-mapping/#federal-authorizing-officials	Need to remove JAB referencesNeed to expand to include other authorization path types.Need to add "Allowed Values" content.This is burried in the Federal Authorizing Officials section. It may benefit from having its own section.	Y
Title	//metadata/title	https://automate.fedramp.gov/documentation/general-concepts/4-expressing-common-fedramp-template-elements-in-oscal/#title-page	Title page grapic is wrong. Needs to be of the actual SSP template, not generic FedRAMP templates.Need path info	Y
Publication Date	//metadata/published	https://automate.fedramp.gov/documentation/general-concepts/4-expressing-common-fedramp-template-elements-in-oscal/#title-page	Need path info	Y
Version	//metadata/version	https://automate.fedramp.gov/documentation/general-concepts/4-expressing-common-fedramp-template-elements-in-oscal/#title-page	Need path info	Y
Revisions	//metadata/revisions	https://automate.fedramp.gov/documentation/general-concepts/4-expressing-common-fedramp-template-elements-in-oscal/#document-revision-history	Need path info	Y
FedRAMP Version Prop	//metadata/prop[@name='fedramp-version'	NEED DOCUMENTATION	Need path info	Y
Document Marking	//metadata/prop[@name='marking']	https://automate.fedramp.gov/documentation/general-concepts/4-expressing-common-fedramp-template-elements-in-oscal/#title-page	Need path info	Y