create contributions with upload file paperclip gem
show file to contributino
change link to file attribute
add format to validate separate with comas and notice
add date to create and update
add devise to authenticate and register user
add authenticate to contributions
add user session when save contribution
add root to redirect login
add logout path into layout
add readme with app description
add boostrap and modified style with scaffold validate
add styles to form(view,show, create, update)
add validate to user signed in
generate devise view html
create devise layout and add boostrap class to inputs in views login
add styles to edit registration
edit devise views
edit show with template funcionaly
add model db, and create menu to user