fixed the problem
sign up
code and docmentation for signup
tests#155
Merge branch 'c1_merge_work' into c1_donia_signUp
merge1 signup
all#155
signup good#155
signup#155
add uml
changes fixed problems#155
all
all#155#156#159
isA it will work
Merge pull request #198 from yousraHazem/c1_donia_signUp

C1 donia sign up