Update README.md

final commit

I test if the function for create user in User class work

I begin the test unit

I add exception

I add exception

Final commit for update README.md

Final commit for update README.md

Final commit for update README.md

Final commit for update User

Final commit for update User

I add README.md

I add HierarchieDesDossiers.PNG

With My Api i can delete User in my DataBase

With My Api i can update User in my DataBase