package.json: add prettier-write action

Author: kaloudis

package.json

@@ -18,6 +18,7 @@
     "update-protos": "sh scripts/update_protos.sh  ${npm_package_config_lnd_release_tag} ${npm_package_config_loop_release_tag} ${npm_package_config_pool_release_tag} ${npm_package_config_faraday_release_tag}",
     "generate": "sh scripts/generate_types.sh ${npm_package_config_lnd_release_tag} ${npm_package_config_loop_release_tag} ${npm_package_config_pool_release_tag} ${npm_package_config_faraday_release_tag} ${npm_package_config_protoc_version}",
     "prettier": "prettier --check '**/*.ts*'",
+    "prettier-write": "prettier --check --write '**/*.ts*'",
     "lint": "tslint -p tsconfig.json",
     "prepare": "npm run build",
     "prepublishOnly": "npm run lint",