Add example

example/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "my-app",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start"
+  },
+  "dependencies": {
+    "date-fns": "^2.11.1",
+    "gray-matter": "^4.0.2",
+    "next": "9.3.1",
+    "react": "16.13.1",
+    "react-dom": "16.13.1",
+    "remark": "^12.0.0",
+    "remark-html": "^11.0.1"
+  }
+}