Merge remote-tracking branch 'origin/main'

54m · 54m · commit 563b6c791ffe · 2022-11-14T12:25:27.000+09:00
diff --git a/README.md b/README.md
@@ -3,6 +3,8 @@ Obtains an index of specified size length and returns it.
 
 # Usage
 
+https://go.dev/play/p/KzSjIei9_vL
+
 ```go
 package main
 
