Update README.md

Author: dominhduy09

README.md

@@ -7,8 +7,7 @@ tutorial
 ```
 
 > AVR studio:
-- Attached Files: File msys-1.0-vista64.zip (314.596 KB)
-- Proteus: https://drive.google.com/drive/folders/1EH0tngVyzOeCB6_PtS2HLMs_a31O6Jgr?usp=sharing
+- Attached Files: msys-1.0-vista64.zip (314.596 KB)
 - AVR studio: https://drive.google.com/file/d/1xbGcmtCA6jSrG9X-WagFf3Ijsqq-erof/view?usp=sharing
 - WinAVR-20100110-install: https://drive.google.com/file/d/1x3v1GE-BtMtXhwboPx63xHpu3oJ-JPot/view?usp=sharing