Add Prettier Action

.github/workflows/format_prettier.yml

@@ -0,0 +1,28 @@
+name: Format Prettier
+
+# This action works with pull requests and pushes
+on:
+  pull_request:
+  push:
+    branches:
+    - master
+
+jobs:
+  prettier:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        # Make sure the actual branch is checked out when running on pull requests
+        ref: ${{ github.head_ref }}
+
+    - name: Prettify code
+      uses: creyD/prettier_action@v2.2
+      with:
+        # This part is also where you can pass other options, for example:
+        prettier_options: 
+          --write **/*.{js,md} 
+          --tab-width 4
+          --jsx-bracket-same-line true