move ci readme, remove cov badge from workflow

.github/workflows/unit-tests.yml

@@ -17,8 +17,3 @@ jobs:
         run: npm ci
       - name: Run Tests
         run: npm run test
-      - name: Update Coverage Badge
-        # GitHub actions: default branch variable
-        # https://stackoverflow.com/questions/64781462/github-actions-default-branch-variable
-        if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
-        uses: we-cli/coverage-badge-action@main

docs/CI-CD.md

@@ -0,0 +1,22 @@
+# GitHub Action CI/CD
+
+## Testing Locally
+
+Use: **Act**
+Source: <https://www.freecodecamp.org/news/how-to-run-github-actions-locally/>
+
+Running actions:
+
+```sh
+# In Jukebox-Frontend/
+act
+```
+
+## Coverage
+
+TODO: Add test coverage badge
+
+Resources:
+
+- <https://github.com/vitest-dev/vitest/issues/2288>
+- <https://github.com/nystudio107/rollup-plugin-critical/blob/master/.github/workflows/node.js.yml>