Update README.md

README.md

@@ -1,6 +1,8 @@
 # Marlin 3D Printer Firmware
 ![Marlin logo](https://git.trov.ar/trovar/marlin-anet-a8/raw/branch/main/buildroot/share/pixmaps/logo/marlin-250.png)
 
-## Usage instructions
+## Flash instructions
 
 1. Install Anet board definition for Arduino IDE from `./anet-board` ([Source](https://github.com/SkyNet3D/anet-board))
+2. Install LiquidCrystal library for Arduino using the IDE library manager
+3. Flash selecting `Anet V1.0 (Optiboot)` as board