diff --git a/demo/non-os/stm32f10x/README.md b/demo/non_os/stm32f10x/README.md
similarity index 62%
rename from demo/non-os/stm32f10x/README.md
rename to demo/non_os/stm32f10x/README.md
index 23fbc60..1e9d682 100644
--- a/demo/non-os/stm32f10x/README.md
+++ b/demo/non_os/stm32f10x/README.md
@@ -2,4 +2,4 @@
 
 ---
 
-ΒνΙΟΎΝΐ΄‘­‘­
\ No newline at end of file
+马上就ζ₯……
\ No newline at end of file
diff --git a/demo/os/freertos/stm32f10x/README.md b/demo/os/freertos/stm32f10x/README.md
index 5f8ef32..536263a 100644
--- a/demo/os/freertos/stm32f10x/README.md
+++ b/demo/os/freertos/stm32f10x/README.md
@@ -2,4 +2,4 @@
 
 ---
 
-ΒνΙΟΎΝΐ΄‘­‘­
\ No newline at end of file
+马上就ζ₯……
\ No newline at end of file
diff --git a/demo/os/rtthread/stm32f4xx/README.md b/demo/os/rtthread/stm32f4xx/README.md
index 3085e84..9b88166 100644
--- a/demo/os/rtthread/stm32f4xx/README.md
+++ b/demo/os/rtthread/stm32f4xx/README.md
@@ -2,4 +2,4 @@
 
 ---
 
-ΒνΙΟΎΝΐ΄‘­‘­
\ No newline at end of file
+马上就ζ₯……
\ No newline at end of file
diff --git a/demo/os/ucosii/stm32f20x/README.md b/demo/os/ucosii/stm32f20x/README.md
index 4d0669b..4fa1149 100644
--- a/demo/os/ucosii/stm32f20x/README.md
+++ b/demo/os/ucosii/stm32f20x/README.md
@@ -2,4 +2,4 @@
 
 ---
 
-ΒνΙΟΎΝΐ΄‘­‘­
\ No newline at end of file
+马上就ζ₯……
\ No newline at end of file