Update README.md

Signed-off-by: Tony dev web <133053699+tony-dev-web@users.noreply.github.com>

Author: tony-dev-web

README.md

@@ -1,3 +1,4 @@
 <h1>Wivivi.com - Bourse de Fret</h1>
 <p>Bourse de fret européenne bientot disponible en Open source</p>
 <p><a href="https://wivivi.com">Wivivi.com</a></p>
+<div><img src="https://github.com/tony-dev-web/wivivi.com/blob/main/wivivi-ogg.png" width="200" height="200" alt="Wivivi - Bourse de fret" ></div>