Update README.md

kurehajime · web-flow · commit 200f51197d8d · 2018-04-11T20:39:11.000+09:00
diff --git a/README.md b/README.md
@@ -4,7 +4,7 @@
 
 Pong-command is a CLI game.
 
-***PO***NG is ***N***ot PIN***G***.
+**PO**ng is **N**ot pin**G**.
 
 ## How to use.
 
