Update Page “test-typographie”

content/pages/test-typographie.md

@@ -318,8 +318,20 @@ see [how to change output](https://github.com/markdown-it/markdown-it-emoji#chan
 
 ### [Subscript](https://github.com/markdown-it/markdown-it-sub) / [Superscript](https://github.com/markdown-it/markdown-it-sup)
 
+``` 
 * 19^th^
 * H\~2\~O
+```
+* 19^th^
+* H\~2\~O   
+Ne fonctionne pas
+```
+* 19<sup>th</sup>
+* H<sub>2</sub>O
+```
+* 19<sup>th</sup>
+* H<sub>2</sub>O   
+Fonctionne beaucoup mieux
 
 ### [<ins>](https://github.com/markdown-it/markdown-it-ins)