chore: add reference to https://bitspittle.dev/blog/2022/kover-badge in coverage-badge.yml

Author: EchoEllet

.github/workflows/coverage-badge.yml

@@ -14,31 +14,32 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup Flutter (Stable)
+      - name: Setup Flutter (stable)
         uses: subosito/flutter-action@v2
         with:
           channel: stable
           cache: true
 
-      - name: Install Package Dependencies
+      - name: Install package dependencies
         run: flutter pub get
 
-      - name: Collect coverage info
+      - name: Run tests and collect coverage information
         run: flutter test --coverage
 
-      - name: Install lcov
+      - name: Install lcov (coverage tool)
         run: sudo apt install -y lcov
 
       - name: Extract coverage percentage
         id: coverage-extractor
         run: |
-          percentage=$(lcov --summary coverage/lcov.info | grep 'lines' | awk '{print $2}' | sed 's/%//' | sed 's/.0$//')
-          echo "COVERAGE=$percentage" >> $GITHUB_OUTPUT
+          coverage=$(lcov --summary coverage/lcov.info | grep 'lines' | awk '{print $2}' | sed 's/%//' | sed 's/.0$//')
+          echo "COVERAGE=$coverage" >> $GITHUB_OUTPUT
 
-      - name: Print the coverage percentage for testing
+      - name: Output coverage percentage
         run: |
-          echo "The coverage percentage is ${{ steps.coverage-extractor.outputs.COVERAGE }}"
+          echo "The code coverage percentage is ${{ steps.coverage-extractor.outputs.COVERAGE }}"
 
+      # For a detailed guide, refer to: https://bitspittle.dev/blog/2022/kover-badge
       - name: Update dynamic badge gist
         uses: schneegans/dynamic-badges-action@v1.7.0
         with: