Update README.md

Author: warwick320

README.md

@@ -5,10 +5,10 @@
 2. BUTTONS (3)
 3. SSD1306 OLED
 # Setup
-  Board Manger version 3.1.5 ( I use this version)  
-  Adafruit_SSD1306  
-  Adafruit GFX  
-  Tool -> Standard Lib Enable -> "Arduino_STD_PRINTF"  
+ - Board Manger version 3.1.5 ( I use this version)  
+ - Adafruit_SSD1306  
+ - Adafruit GFX  
+ - Tool -> Standard Lib Enable -> "Arduino_STD_PRINTF"  
 # Connection
 ## button
 1. Up PA27