Update package.json

package.json

@@ -2,6 +2,7 @@
     "name": "noob",
     "version": "0.1.0",
     "private": true,
+    "main": "packages/index.ts",
     "scripts": {
         "dev": "vue-cli-service serve",
         "build": "vue-cli-service build",
@@ -45,4 +46,4 @@
         "not dead",
         "not ie 11"
     ]
-}
+}