Create build.yml workflow

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: Build on Push
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js
+      uses: actions/setup-node@v1
+      with:
+        node-version: '14' # or the version you need
+
+    - name: Install Dependencies
+      run: npm install
+
+    - name: Run Build
+      run: npm run build