Add Docker support and GitHub Container Registry CI workflow (#3)

* Add comprehensive Docker support with multi-stage builds
* Set up GitHub Container Registry integration
* Enhance CI/CD workflows with Docker build and push capabilities
* Add --help and --version flags to main application
* Update documentation with Docker usage examples
* Implement security best practices for container deployment

.github/workflows/release.yml

@@ -0,0 +1,74 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
+          check-latest: true
+
+      - name: Run tests
+        run: go test -v ./...
+
+      - name: Install UPX
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y upx
+
+      - name: Build binaries
+        run: |
+          # Set the build time environment variable using git commit timestamp
+          BUILD_TIME=$(git log -1 --format=%cd --date=iso-strict)
+
+          # Add run permissions to the build script
+          chmod +x ./scripts/build.sh
+
+          # Build for all platforms
+          ./scripts/build.sh \
+            --verbose \
+            -ldflags "-s -w -X github.com/kjanat/articulate-parser/internal/version.Version=${{ github.ref_name }} -X github.com/kjanat/articulate-parser/internal/version.BuildTime=$BUILD_TIME -X github.com/kjanat/articulate-parser/internal/version.GitCommit=${{ github.sha }}"
+
+      - name: Compress binaries
+        run: |
+          cd build/
+          for binary in articulate-parser-*; do
+            echo "Compressing $binary..."
+            upx --best "$binary" || {
+              echo "Warning: UPX compression failed for $binary, keeping original"
+            }
+          done
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            build/articulate-parser-linux-amd64
+            build/articulate-parser-linux-arm64
+            build/articulate-parser-windows-amd64.exe
+            build/articulate-parser-windows-arm64.exe
+            build/articulate-parser-darwin-amd64
+            build/articulate-parser-darwin-arm64
+          generate_release_notes: true
+          draft: false
+          # Mark pre-1.0 versions (v0.x.x) as prerelease since they are considered unstable
+          # This helps users understand that these releases may have breaking changes
+          prerelease: ${{ startsWith(github.ref, 'refs/tags/v0.') }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}