StrengthExchange description and user stories

StrengthExchange (StrengthOverflow?)
HIGH LEVEL DESCRIPTION:
- Strength training app.
- The app will allow users (ideally PTs) to create strength training programs that can be accessed other users (ideally customers).
- The programs will be 'one size fits all', relying on customers' "one rep maximums" (1RMs) as a guide for the kg/lb weight for each exercise.
(For MVP this means that PTs do not coach customers, just provide training programs.)
- The dashboard will provide:
  - A program builder, which allows trainers to populate a training cycle (say, 12 weeks) with workouts based on exercises, weights as percentage of 1RMs, and reps.
  - Feedback from users about each workout (likes/signups will be used as feedback to coaches, telling them which programs are most popular)
  - Relevant coaching materials to revise PTs on instructing the movements (eg https://www.youtube.com/watch?v=yWRkBH_q_Ag)

USER STORIES.  As a user, I should be able to:
- Sign up
- Log in/out
- Edit my profile (bio, profile picture etc)
- Delete my profile
- Set program cycles as long as I like (using expandable calendar format)
- Create a fully personalised program - including exercise type, reps, percentage 1RM weights, frequency, misc notes
- See video and pictures giving instructions for safely performing the exercises
- See feedback from users
- See other trainers' programs