From cf0c197d851cdcae6ea1c88f7bf02b679e846b09 Mon Sep 17 00:00:00 2001
From: Natsume1710 <162396185+Natsume1710@users.noreply.github.com>
Date: Mon, 16 Jun 2025 17:51:23 +0800
Subject: [PATCH] Update README.md

---
 06-NetworkIot/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/06-NetworkIot/README.md b/06-NetworkIot/README.md
index 3c9b3df..4f18bd4 100644
--- a/06-NetworkIot/README.md
+++ b/06-NetworkIot/README.md
@@ -130,7 +130,7 @@ close(sock);
 
 ---
 
-### ✅ DHCP / DNS / ICMP 说明
+### DHCP / DNS / ICMP 说明
 
 * **DHCP**：动态分配 IP（LwIP 可配置）
 * **DNS**：域名解析，调用 `gethostbyname()` 等
@@ -138,7 +138,7 @@ close(sock);
 
 ---
 
-### ✅ 推荐阅读资料
+### 推荐阅读资料
 
 * [LwIP 官方文档](https://savannah.nongnu.org/projects/lwip/)
 * [FreeRTOS+TCP 文档](https://freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/index.html)