Add followings table
Add followings route
Add post action to follow button
Add many-to-many association with followings
Change @user from find by session user to selected user
Add link to people_path
Add following model with user association
Add following fabricator
Add migration for followings table
Add Index and Create actions
Add followings show template
Unnest following routes from user
change path to follow user
Add delete path
Add #destroy action
Delegate full_name and email to User, add #count_queue_videos and #count_followers
Add specs for following model, #count_queue_videos and #count_followers
Add specs for POST #create DELETE #destroy and GET #index