improved wording

iintothewind · iintothewind · commit 97825053afec · 2018-03-26T21:52:06.000+08:00
diff --git a/README.md b/README.md
@@ -127,7 +127,7 @@ cf_req -l '/data/2.5/weather?appid=a38e&lang=zh_cn&q=Shanghai' | cf_jsonfmt | cf
 
 result:
 
-```shell
+```bash
 Mist
 ```
 

-Original file line number
+Diff line change
 result:
 -```shell
 +```bash
 Mist
 ```