ogma-cli: Update README to reflect new contribution process

[ivanperez-keera]

Description

Ogma now has a process that allows us to accept contributions from external users again. However, the current notice in the README should be updated describing the new process.

Type

• Management: Update to reflect new process.

Additional context

None.

Requester

• Ivan Perez

Method to check presence of bug

Not applicable (not a bug).

Expected result

The README indicates a process by which contributors can send their contributions.

Desired result

The README indicates a process by which contributors can send their contributions.

Proposed solution

Modify README to indicate how contributions should be prepared, and any forms or additional information that must be provided (e.g., CLAs).

Further notes

NASA may require signing a CLA, which may take some time to obtain. We should have the templates before we know when we can schedule this for.

[ivanperez-keera]

Change Manager: Confirmed that the issue exists.

[ivanperez-keera]

Technical Lead: Confirmed that the issue should be addressed.