Add sql script
modify sql script
modify ER diagram
Workout buddy Joel

This is the previous version for workout buddy
Merge branch 'master' of https://github.com/rafaelangelucci/WorkoutBuddy.git
Merge branch 'master' of https://github.com/rafaelangelucci/WorkoutBuddy
Merge branch 'master' of https://github.com/rafaelangelucci/WorkoutBuddy
Merge branch 'master' of https://github.com/rafaelangelucci/WorkoutBuddy