fix incorrect import example

README.md

@@ -14,8 +14,8 @@ $ pnpm add node-ufw
 
 ## Usage
 ```js
-const nodeUfw = require("node-ufw").default; // JavaScript
-import nodeUfw from "node-ufw"; // TypeScript
+const nodeUfw = require("node-ufw"); // JavaScript
+import * as nodeUfw from "node-ufw"; // TypeScript
 
 await nodeUfw.allow.port(6379);
 await nodeUfw.deny.port(25565, "udp");