Update Workflow README

[arielswalker]

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.
The README is outdated for the dev branch.

Describe the solution you'd like
Update the file to include the existing workflows on dev along with their status. Add the list of actions that the workflows uses.

Requester Info
Ariel Walker, MCSG TECH.