diff --git a/README.md b/README.md
index 3f5c09e..84dbe56 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
+#说明
 对于ESP32-WROOM的AT引脚需要注意是17-RX,16-TX
 FLASH选择 DIO
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