fix CD

.github/workflows/main.yml

@@ -5,16 +5,15 @@ on:
     branches:
       - master
 jobs:
-  build-and-deploy:
+  build:
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@master
-
-    - name: Build and Deploy
-      uses: JamesIves/github-pages-deploy-action@master
-      env:
-        ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
-        BRANCH: gh-pages
-        FOLDER: build
-        BUILD_SCRIPT: npm install && npm run build
+    - uses: actions/checkout@master
+    - name: Use Node.js 10.x
+      uses: actions/setup-node@v1
+      with:
+        version: 10.x
+    - name: Build
+      run: |
+        npm install
+        npm run build --if-present