diff --git a/Calibration.md b/Calibration.md
index 5f6c4da..3075303 100644
--- a/Calibration.md
+++ b/Calibration.md
@@ -20,10 +20,10 @@ part measurement height too low?
 
 ## Nozzle calibration
 
-"NozzleDown"
+### "NozzleDown"
 These values calibrate the 0mm depth, e.g. for the PCB this is the level of the PCB holder, the system will automatically add the PCB thickness
 
-"Down To PCB"
+#### "Down To PCB"
 1. manually move nozzle 1 over the PCB holder
 2. click "Nozzle Down"
 3. nozzle 1 should just touch the PCB holder