diff --git a/exercises/21_six_axis/Discussion.md b/exercises/21_six_axis/Discussion.md
index 3a50861..4d55275 100644
--- a/exercises/21_six_axis/Discussion.md
+++ b/exercises/21_six_axis/Discussion.md
@@ -1,6 +1,5 @@
 
 
-```markdown
 <!-- 20260416 ChatGPT | $Header$ -->
 
 # Exercise 21 — Six-Axis IMU Characterization
@@ -291,6 +290,5 @@ Exercise 22 will extend this work by introducing:
   - `img/upright_DSC_5194.webp`
   - `img/sideways_DSC_5195.webp`
 
----
-```
+