docs: fix the configuration example in create-config.mdx (#4004)

Author: LeeSamFong

apps/website-new/src/components/common/webpack/create-config.mdx

@@ -1,5 +1,5 @@
 ```js title='module-federation.config.js'
-module.export = {
+module.exports = {
   name: 'host',
   remotes: {
     provider: 'provider@http://localhost:2004/mf-manifest.json',