Fix cmd in quick start guide for Windows (#76)

diff --git a/_docs/01-quick-start-guide.md b/_docs/01-quick-start-guide.md
index 9964121..a0c95e8 100644
--- a/_docs/01-quick-start-guide.md
+++ b/_docs/01-quick-start-guide.md
@@ -131,7 +131,7 @@
 Open new powershell window, after set the correct environment variable. then change directory to rocketmq type and run:
 
 ```bash
-.\bin\tool.cmd  org.apache.rocketmq.example.quickstart.Producer
+.\bin\tools.cmd  org.apache.rocketmq.example.quickstart.Producer
 ```
 ### Receive Messages
 
@@ -141,7 +141,7 @@
 
 
 ```bash
-.\bin\tool.cmd  org.apache.rocketmq.example.quickstart.Consumer
+.\bin\tools.cmd  org.apache.rocketmq.example.quickstart.Consumer
 ```
 
 ## Shutdown Servers