🚀 Add dual-publish

Author: distolma

package.json

@@ -3,6 +3,7 @@
   "version": "0.4.0",
   "description": "A tiny (150 bytes) connector for Storeon and Vue",
   "main": "index.js",
+  "types": "index.d.ts",
   "scripts": {
     "start": "parcel serve example/index.html --open",
     "lint": "eslint ./*.js",
@@ -27,6 +28,7 @@
     "@size-limit/preset-small-lib": "^4.4.0",
     "@vue/component-compiler-utils": "^3.1.1",
     "@vue/test-utils": "^1.0.0-beta.32",
+    "dual-publish": "^0.5.2",
     "eslint": "^6.8.0",
     "eslint-config-standard": "^14.1.0",
     "eslint-plugin-import": "^2.20.1",