diff --git a/units/en/unitbonus5/introduction.mdx b/units/en/unitbonus5/introduction.mdx
index b83cf3f..6aefc4b 100644
--- a/units/en/unitbonus5/introduction.mdx
+++ b/units/en/unitbonus5/introduction.mdx
@@ -1,4 +1,5 @@
 # Introduction:
+
 <img src="https://huggingface.co/datasets/huggingface-deep-rl-course/course-images/resolve/main/en/unit13/thumbnail.png" alt="Unit bonus 4 thumbnail"/>
 Welcome to this bonus unit, where you will **train a robot agent to complete a mini-game level using imitation learning.**