Update README.md

2017-06-17 15:17:12 +08:00 · 2017-06-17 15:17:12 +08:00 · f01e175ef8
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@ -18,6 +18,7 @@ Update: <br>
     
 2.) Step2, Clone my repo onto your pi<br><br>
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+```sudo rm -rf LCD-show```<br>
 ```git clone https://github.com/goodtft/LCD-show.git```<br>
 ```chmod -R 755 LCD-show```<br>
 ```cd LCD-show/```<br>