diff --git a/Appendix-C:-Firmware-programming.md b/Appendix-C:-Firmware-programming.md
index 0b58808..a57b7ec 100644
--- a/Appendix-C:-Firmware-programming.md
+++ b/Appendix-C:-Firmware-programming.md
@@ -24,9 +24,9 @@ The base PCB has a 6-pin ICSP header. The pins are numbered like this:
  5 -> o  o <- 6
 ```
 
-Note that pin 1 is a square pad on the board. Also, this is the way the header looks when viewed from the *top* of the board (i.e. the microcontroller is visible).
+Note that pin 1 is a square pad on the board. Also, this is the way the header looks when viewed from the *top* of the board (i.e. when the microcontroller is visible).
 
-Make the following connections using hookup wire
+Make the following connections using hookup wire:
 
 ```
 ICSP Pin 1 -> Arduino Pin D12   (MISO)