diff --git a/app/src/main/assets/help/httpTTSHelp.md b/app/src/main/assets/help/httpTTSHelp.md
index f3beb4c6b..0f261888a 100644
--- a/app/src/main/assets/help/httpTTSHelp.md
+++ b/app/src/main/assets/help/httpTTSHelp.md
@@ -2,14 +2,14 @@
 
 * 在线朗读规则为url规则,同书源url
 * js参数
-~~~
+```
 speakText //朗读文本
 speakSpeed //朗读速度,0-45
-~~~
+```
 * 例:
-~~~
+```
 http://tts.baidu.com/text2audio,{
     "method": "POST",
     "body": "tex={{java.encodeURI(java.encodeURI(speakText))}}&spd={{String((speakSpeed + 5) / 10 + 4)}}&per=5003&cuid=baidu_speech_demo&idx=1&cod=2&lan=zh&ctp=1&pdt=1&vol=5&pit=5&_res_tag_=audio"
 }
-~~~
\ No newline at end of file
+```
\ No newline at end of file