doc: more efficient example in the console.md

Object.setPrototypeOf() -> Object.create()

PR-URL: https://github.com/nodejs/node/pull/10451
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/console.md

@@ -135,15 +135,20 @@ the default behavior of `console` in Node.js.
 
 // Creates a simple extension of console with a
 // new impl for assert without monkey-patching.
-const myConsole = Object.setPrototypeOf({
+const myConsole = Object.create(console, {
-  assert(assertion, message, ...args) {
+  assert: {
+    value: function assert(assertion, message, ...args) {
       try {
         console.assert(assertion, message, ...args);
       } catch (err) {
         console.error(err.stack);
       }
-  }
+    },
-}, console);
+    configurable: true,
+    enumerable: true,
+    writable: true,
+  },
+});
 
 module.exports = myConsole;
 ```