Add workflow for publishing APK in release

.github/workflows/Publish.yml

@@ -0,0 +1,33 @@
+name: Publish
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    name: Publish binaries
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Grant Permission to Execute
+        run: chmod +x gradlew
+
+      - name: Build debug APK
+        run: bash ./gradlew assembleDebug --stacktrace
+
+      - name: Upload APK to release
+        uses: svenstaro/upload-release-action@v1-release
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: app/build/outputs/apk/debug/app-debug.apk
+          asset_name: app.apk
+          tag: ${{ github.ref }}
+          overwrite: true