add ci action

.github/workflows/electron_build.yml

@@ -0,0 +1,34 @@
+name: Build and Release
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+    - name: Check out Git repository
+      uses: actions/checkout@v2
+
+    - name: Install Node.js
+      uses: actions/setup-node@v1
+      with:
+        node-version: 14
+    - name: cd to app directory
+      run: cd music_player
+
+    - name: Install Dependencies
+      run: npm install
+
+    - name: Build and Release
+      uses: samuelmeuli/action-electron-builder@v1
+      with:
+        # GitHub token, automatically provided to the action
+        # (No need to define this secret in the repo settings)
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+
+        # If the commit is tagged with a version (e.g. "v1.0.0"),
+        # release the app after building
+        release: ${{ startsWith(github.ref, 'refs/tags/v') }}