Update fichier-markdown.md

module1/exo2/fichier-markdown.md

 # Partie 1
 
-## Title of the first sub-section
-
-### Title of the first sub-sub-section
+## Title of the first sub-section: Text and hyperlink
 
 The text is *italic* and **bold**
 
@@ -14,7 +12,7 @@ Image of the space
 
 ![Image of the space](https://th.bing.com/th/id/OIP.ZSGkX6j-1KODgyNCY1CXHQHaF7?rs=1&pid=ImgDetMain)
 
-### Creation of the list
+## Creation of the list
 
 A bullet list
 
@@ -31,6 +29,6 @@ A numbered list
 2. the second element
 
 <!--A code block  -->
-## The second sub-section: A code block
+## The third sub-section: A code block
 ```python
 print("Hellow, world!")