Add prepare hook to publish the real dist build

package.json

@@ -26,6 +26,7 @@
     "bundle": "rollup -i $npm_package_module -o $npm_package_main -m -f umd -n $npm_package_name",
     "format": "prettier --semi false --write 'src/**/*.js'",
     "minify": "uglifyjs $npm_package_main -o $npm_package_main --mangle --compress --source-map",
+    "prepare": "npm run build",
     "push": "git commit -am $npm_package_version && git tag $npm_package_version && git push && git push --tags && npm publish",
     "release": "npm run push && release --publish",
     "test": "jest --coverage"