diff --git a/Calibration.md b/Calibration.md
index eb91f1e..5f6c4da 100644
--- a/Calibration.md
+++ b/Calibration.md
@@ -1,5 +1,5 @@
-Up vision calibration
----------------------
+## Up vision calibration
+
 part placed too far to the right?
   increase X camera position
 part placed too far to the left?
@@ -18,8 +18,8 @@ part measurement height too high?
 part measurement height too low?
   increase "Distance/Pixel" Y (second value)
 
-Nozzle calibration
-------------------
+## Nozzle calibration
+
 "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