Update fichier-markdown.md

module1/exo2/fichier-markdown.md

-test
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+# Partie 1
+
+## Sub-parts
+
+*Less is more (in italic)*
+
+**Less is more (in bold)**
+
+A link to [CSC](https://www.csc.edu.cn/chuguo)
+
+Bullet list
+-  Title 1
+-  Title 2
+   -  Sub-title 2a
+   -  Sub-title 2b
+
+Numbered list
+1.  Title 1
+2.  Title 2
+    1.  Title 2a
+    2.  Title 2b
+
+```
+Hello World !
+```
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