From a86a9c18f84db226f3273cb1832c59d57d1c1a52 Mon Sep 17 00:00:00 2001
From: David Lin <linpeng1577@gmail.com>
Date: Mon, 24 Feb 2020 21:24:27 +0800
Subject: [PATCH] Improve readability of codes in farm ai demo

__APP_DEMO_H__ ->__MQTT_DEMO_H__