fix: add 3020 port

Author: hchangjae

package.json

@@ -13,6 +13,7 @@
   "scripts": {
     "dev": "cross-env HOST=0.0.0.0 PORT=3000 nuxt",
     "dev-hcj": "cross-env HOST=0.0.0.0 PORT=3010 nuxt",
+    "dev-wsj": "cross-env HOST=0.0.0.0 PORT=3020 nuxt",
     "build": "nuxt build",
     "start": "nuxt start",
     "generate": "nuxt generate",