Add Documentation for CI/CD Concepts and Examples

[mrshaw01]

Introduce a section explaining CI/CD (Continuous Integration / Continuous Deployment) concepts with practical examples.

Suggested Actions:

• Create a new folder: ci-cd/ or devops/ci-cd/

• Cover key topics:

  • What is CI/CD and why it's important
  • Basic GitHub Actions workflow (.github/workflows/)
  • Example: Build + test C++/Python projects automatically
  • Deployment triggers (optional)

• Include annotated YAML examples for clarity