diff --git a/Appendix-C:-Firmware-programming.md b/Appendix-C:-Firmware-programming.md
index 99c9d6b..0b58808 100644
--- a/Appendix-C:-Firmware-programming.md
+++ b/Appendix-C:-Firmware-programming.md
@@ -15,6 +15,7 @@ The Arduino Nano offers a very simple and easy way of programming the microcontr
 
 ## Step 2: Hook up the base PCB to the Arduino Nano
 **TODO PIX**
+
 The base PCB has a 6-pin ICSP header. The pins are numbered like this:
 
 ```