docs(readme): modify emqx website
[![Community](https://img.shields.io/badge/Community-NanoMQ-yellow?logo=github)](https://github.com/nanomq/nanomq/discussions)
-[![The best IoT MQTT open source team looks forward to your joining](https://www.emqx.io/static/img/github_readme_en_bg.png)](https://www.emqx.io/careers)NanoMQ MQTT Broker (NanoMQ) is a lightweight and blazing-fast MQTT Broker for the IoT Edge platform.
+[![The best IoT MQTT open source team looks forward to your joining](https://static.emqx.net/images/github_readme_en_bg.png)](https://www.emqx.com/en/careers)NanoMQ MQTT Broker (NanoMQ) is a lightweight and blazing-fast MQTT Broker for the IoT Edge platform.
NanoMQ bases on NNG's asynchronous I/O threading model, with an extension of MQTT support in the protocol layer and reworked transport layer, plus an enhanced asynchronous IO mechanism maximizing the overall capacity.
@@ -357,7 +357,7 @@ You could join us on [Slack](https://slack-invite.emqx.io/). We now share a work
### EMQ X Broker
-[EMQ X Broker](https://www.emqx.io/)
+[EMQ X Broker](https://www.emqx.com/en)
