Update PR Review Process Documentation

[Dianadec]

Add notes from Dev Team agreements on April 26 to the cas-home documentation.

AC:

• [ ] Updates to the written PR Review process to be added to the cas-home documentation on github.

Check out the DevOps Team Agreements miro board for notes to add.

[Sepehr-Sobhani]

Link to existing doc: https://github.com/bcgov/cas-home/blob/main/docs/version_control/pull-request-review-process.md

[pbastia]

Thank you @BCerki !