Added Prettifier Config

.github/workflows/prettier.yml

@@ -0,0 +1,20 @@
+name: Prettier for JS Code
+
+on: [pull_request]
+
+jobs:
+  cleanup_tasks:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Cloning the repository
+      uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Prettify the JS Code
+      uses: creyD/prettier_action@master
+      with:
+        prettier_options: --no-semi --write src/**/*.js
+        branch: ${{ github.head_ref }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}