working on styling book report page

added functionality to book reports on book details page

added book report card component

added functionality to adding book reports

message telling you that you can't unread a book added to bookdetails

conditional rendering on completed checkbox on update; allows you to mark unread books as read but not read books as unread

Merge pull request #1 from ralicynf/rebecca

fixed udpate book functionality

Update README.md

tried to add update functionality; currently doesn't update

added delete functionality to frontend book model

frontend route to leave bookreport

trying to fix bookreports

finished styling registration page

styling on register and login