diff --git a/designdocs/sensors.md b/designdocs/sensors.md
index 080891cf..7be43d35 100644
--- a/designdocs/sensors.md
+++ b/designdocs/sensors.md
@@ -93,6 +93,7 @@ Since these vectors are all normalised we can invert them by taking the transpos
 `M = [N_c | U_c | E_c] * [N_p | U_p | E_p]_T` 
 
 So the only thing remaining is to figure out `P_p` and `Q_p` which are usually going to be
+
 [0, 0, -1] and [0, 1, 0] respectively.
 
 'Usually' because in certain circumstances you might want them to be different. For example if you
@@ -100,7 +101,6 @@ set `P_p` to be [0, 1, 0] and `Q_p` to be [0, 0, 1] you now will have the screen
 long edge of the phone is pointing at. This can be useful if using Sky Map with a telescope - 
 you can strap it to the telescope tube.
 
-
 ## Magnetic correction
 
 All of the above assumes that the phones sensors give you true North, which they don't.