Created a GitHub Actions CI workflow. Temp rename CircleCI version

[ckenst]

Trying to use GitHub Actions rather than CircleCI

[Copilot]

Pull request overview

This PR migrates the CI/CD pipeline from CircleCI to GitHub Actions. The CircleCI configuration is temporarily renamed (from config.yml to temp-rename-config.yml) to disable it while testing the new GitHub Actions workflow.

Key Changes:

• New GitHub Actions workflow created to build and test the Jekyll site
• CircleCI configuration temporarily disabled via file rename
• Both configurations maintain the same build steps: dependency installation, Jekyll build, and HTML validation with htmlproofer

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 2 comments.

File	Description
.github/workflows/ci.yml	New GitHub Actions workflow that builds the Jekyll site and runs htmlproofer tests on push to master and pull requests
.circleci/temp-rename-config.yml	CircleCI configuration renamed to temporarily disable it during the migration testing phase

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[Copilot]

The bundler installation is redundant. The ruby/setup-ruby action with bundler: 2.4.17 already installs the specified bundler version. Remove the 'gem install bundler' line as it's unnecessary and could potentially install a different bundler version than specified.

Suggested change

	gem install bundler
	bundle install
	bundle install

[Copilot]

Consider adding 'bundler-cache: true' to the ruby/setup-ruby action. This will automatically cache gems based on the Gemfile.lock, significantly speeding up subsequent workflow runs. The ruby/setup-ruby action supports this feature and will handle 'bundle install' automatically when caching is enabled.

Suggested change

	- name: Install dependencies
	run: |
	gem install bundler
	bundle install
	bundler-cache: true
	- name: Install dependencies
	run: echo "Dependencies are installed via ruby/setup-ruby with bundler-cache"