Update help-url in fedramp-external-allowed-values

[Rene2mt]

This is a ...

improvement - something could be better

This relates to ...

• the FedRAMP OSCAL baselines
• the FedRAMP SSP OSCAL Example
• the FedRAMP SAP OSCAL Example
• the FedRAMP SAR OSCAL Example
• the FedRAMP POA&M OSCAL Example
• the FedRAMP OSCAL Validations
• the Not sure

User Story

As a FedRAMP OSCAL stakeholder, I need the allowed-values constraints to refer me to the updated documentation so that I know what the allowed-values are for a given data item and can review relevant documentation.

Goals

Update the help-url in the fedram-external-allowed-values.xml, so that it references the correct, updated documentation

Dependencies

No response

Acceptance Criteria

• All FedRAMP Documents Related to OSCAL Adoption (https://github.com/GSA/fedramp-automation) affected by the changes in this issue have been updated.
• A Pull Request (PR) is submitted that fully addresses the goals of this User Story. This issue is referenced in the PR.

Other information

No response

[aj-stein-gsa]

So @Rene2mt, we will use this issue to track all of them?