👷 Add deploy GitHub Action

Author: johannchopin

.github/workflows/deploy.yml

@@ -0,0 +1,31 @@
+name: "Deploy website"
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v1
+        with:
+          node-version: "14.x"
+      
+      - uses: actions/cache@v2
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+
+      - name: Build
+        run: |
+          npm i
+          npm run build
+      - name: Deploy 
+        uses: JamesIves/github-pages-deploy-action@3.6.2
+        with:
+          BRANCH: gh-pages
+          FOLDER: public