diff --git a/README.md b/README.md
index d1225c8..3ddb575 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,8 @@ Schematic of 2.0: https://reprap.org/mediawiki/images/7/7d/Melzi-circuit.png
 EXP connector:
 ----
 
+On the mainboard:
+
     PC1 | 1  2 | PA1
     PC0 | 3  4 | PA2
     PD3 | 5  6 | PA3
@@ -23,7 +25,7 @@ EXP connector:
     VCC | 9 10 | GND
 
 LCD board
-===
+---
 
 | EXP Pin | AVR Pin | AVR Function | Screen board function |
 |---------|---------|--------------|-----------------------|
@@ -39,6 +41,8 @@ LCD board
 Button Matrix
 ---
 
+On the LCD board.
+
 Based on a voltage divider between button(s) pressed and a constant pull-up to VCC.
 
 Resistor to VCC: 4.7k