Update course-structure.qmd

Author: ihiverlet

content/tutorials/course-structure.qmd

@@ -29,7 +29,7 @@ Vous pouvez toutefois [vous référez à la version anglaise](https://docs.sspcl
 
 5. **Interactive Exercises**: Include exercises at the end of each module. Encourage learners to modify the code, test different inputs, and debug any errors they encounter.
 
-You can display solutions for exercises in two ways: either by creating separate files - one for exercises and another one for solutions - or by embedding the solution directly within the course using the following snippet of code:
+Tip : :bulb: You can use the following HTML snippet within the notebook to hide the solution. These tags create collapsible sections that the user can expand or hide by clicking on them.
 
 ```markdown
 <details>
@@ -50,4 +50,4 @@ Content of the solution
 7. **Progressive Difficulty**: 📈 Start with basic concepts and gradually introduce more advanced topics, allowing learners to build their skills step by step. This scaffolding approach ensures that students aren’t overwhelmed but are constantly challenged.
 
 
-:::
+:::