Update README.md

README.md

 # projet-cdaw
 
-[Preview de l'UX](https://app.mockplus.com/run/rp/5sxR45cGH8?ps=1&ha=0&la=0&fc=1&out=1)
+[Preview de l'UX](https://app.mockplus.com/run/rp/5sxR45cGH8?ps=1&ha=0&la=0&fc=1&out=1)
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+[Adresse du site pour tester la partie backend](https://eden.imt-lille-douai.fr/~thibaut.felten/projet-cdaw/backend/MVC/api.php/)
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