renaming
renaming
write Document Purpose and Audience
write functional requirment
Merge branch 'master' of https://github.com/a7medfahmy94/SE_Project into leila_document_purpose
Merge branch 'master' of https://github.com/a7medfahmy94/SE_Project into leila_document_purpose
add use case model
Merge pull request #7 from a7medfahmy94/new_branch_leila

New branch leila