Minor fix of example code in function.md

JiashengWu · web-flow · commit dacd1694f84a · 2021-04-28T19:12:51.000-07:00
diff --git a/docs/function.md b/docs/function.md
@@ -38,7 +38,7 @@ hello() {
 
 ```bash
 $ hello world
-hello world
+Hello world
 ```
 
 下面是一个多行函数的例子，显示当前日期时间。
