Add CI and Code Coverage Badges to README.md

[sc10355]

As a Developer I need to display the build status and code coverage in the README.md So that everyone can easily track the health and coverage of the codebase.

Details and Assumptions

• Add a GitHub Actions CI badge to the README.md file, indicating if the build is passing or failing.
• Add Codecov to GitHub Actions to monitor code coverage, and display a Codecov badge in the README.md.

• Ensure 95%+ code coverage is maintained.

  Acceptance Criteria

  Given a pull request is submitted
  When the badges are added
  Then the GitHub Actions CI badge should reflect the current build status and the Codecov badge should display the current code coverage percentage.

[sc10355]

story 2 for Requirement 2: Add Continuous Integration