From 7946adfd9fc36297dea663be450866bf645d8e5a Mon Sep 17 00:00:00 2001
From: nange <cctonange@gmail.com>
Date: Thu, 16 Nov 2017 13:15:54 +0800
Subject: [PATCH] update readme

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 85f3bf7..ba04ec8 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,9 @@ conn.Close()
 conn.(*PoolConn).MarkUnusable()
 conn.Close()
 
+// 调用MarkUnusable()后，会返回true
+conn.(*PoolConn).IsUnusable()
+
 // 释放当前连接池中所有连接
 pool.Close()