Update reusable workflow documentation and diagram

[astrogeco]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I reviewed the cFS README.md file to see if the feature is in the major future work.
• I performed a cursory search to see if the feature request is relevant, not redundant, nor in conflict with other tickets.

Is your feature request related to a problem? Please describe.
As we add new workflows we should keep documentation up to date

Describe the solution you'd like
New diagrams and updated workflow summaries

Describe alternatives you've considered
Remove documentation and maintain with each file

Additional context
None

Requester Info
Gerardo E. Cruz-Ortiz