Update fichier-markdown.md

# This is an <h1> tag
## This is an <h2> tag
###### This is an <h6> tag
*This text will be italic*
_This will also be italic_

**This text will be bold**
__This will also be bold__

_You **can** combine them_
- Item 1
- Item 2
  - Item 2a
  - Item 2b
1. Item 1
2. Item 2
3. Item 3
   1. Item 3a
   2. Item 3b
![GitHub Logo](/images/logo.png)
Format: ![Alt Text](url)
http://github.com - automatic!
[GitHub](http://github.com)
As Kanye West said:

> We're living the future so
> the present is our past.
To print some text with python, you should use the `print()` function.
```
print("Hello world!")
```