refactor: simplify comments and update build step name in workflow

Author: donbing

.github/workflows/build-pi-image.yml

@@ -23,9 +23,7 @@ jobs:
       - name: Create custom stage for Docker
         run: |
           mkdir -p docker-stage/{00-packages,00-run-chroot.d}
-          # a) Install Docker
           echo docker.io > docker-stage/00-packages/01-packages
-          # b) Copy your docker-compose.yml into rootfs
           cat > docker-stage/00-run-chroot.d/02-copy-compose.sh << 'EOF'
           #!/bin/bash
           install -Dm644 $GITHUB_WORKSPACE/docker-compose.yml \
@@ -34,11 +32,11 @@ jobs:
           chmod +x ${ROOTFS_DIR}/home/pi/docker-compose.yml
           EOF
           chmod +x docker-stage/00-run-chroot.d/02-copy-compose.sh
-          # c) Add empty 00-run.sh to ensure rootfs is created
+          # c) Add empty 00-run.sh to ensure rootfs is created         
           touch docker-stage/00-run.sh
           chmod +x docker-stage/00-run.sh
 
-      - name: Build Raspberry Pi image with pi-gen-action
+      - name: Build Raspberry Pi image
         uses: usimd/pi-gen-action@v1
         id: build
         with: