Update INSTALL.md

INSTALL.md

@@ -17,7 +17,7 @@ Install pygame for python3.4: Download pygame‑1.9.2a0‑cp34‑none‑win32.wh
 
 Execute command 
 ````
-C:\Python34\python -m pip install Downloads\pygame-1.9.2a0-cp34-none-win32.whl
+C:\Python34\python -m pip install "Downloads\pygame-1.9.2a0-cp34-none-win32.whl"
 ````
 Launch Git Bash program and execute command 
 ````