define workflow for CI CD pipeline

.github/workflows/KocelaBuild.yml

@@ -0,0 +1,27 @@
+name: KocelaBuild
+on:
+  pull_request:
+      branches:
+        - main
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses:  actions/[email protected]
+
+      - name: Setup Java JDK
+        uses: actions/[email protected]
+
+      - name: Build with Gradle
+        run: ./gradlew build
+
+      - name: Upload a Build Artifact
+        uses: actions/[email protected]
+        with:
+          name: KocelaInterview.apk
+          path: app/build/outputs/apk/app-debug.apk