diff --git a/Energy-Drift-Correction.-.md b/Energy-Drift-Correction.-.md
index f9420eb..8707cad 100644
--- a/Energy-Drift-Correction.-.md
+++ b/Energy-Drift-Correction.-.md
@@ -41,14 +41,12 @@ Note that adjusting the interferometer mirrors to optimise the signal intensity
 
 # Correcting a Real Drift (requires x-rays)
 
-
-    Find an easily locatable feature that is also small and doesn't change in appearance very much when changing photon energy. A metal particle close to the corner of a membrane is ideal. Symmetry is often important.
-    Select a pair of photon energies that will give a significant difference in focal length (i.e. movement of the ZP-Z stage).
-    Measure the position of the object at each energy and note the change in position.
-    Rotate the endstation using the Girder Mover.
-    Optimise the X-Y position of the Girder Mover for maximum X-ray signal.
-    Iterate steps 3-5 until the drift is minimised.
-
+1. Find an easily locatable feature on a sample that is also small and doesn't change in appearance very much when changing photon energy. A metal particle close to the corner of a membrane is ideal. Symmetry is often important since changes in focus and transparency can change the apparent center position of the object.
+2. Select a pair of photon energies that will give a significant difference in focal length (i.e. movement of the ZP-Z stage).
+3. Measure the position of the object at each energy and note the change in position.
+4. Rotate the endstation using the Girder Mover.
+5. Optimise the X-Y position of the Girder Mover for maximum X-ray signal.
+6. Iterate steps 3-5 until the drift is minimised.
 
 # Applying a Feedback Drift Correction