Adi: finalize home page, look into ui designs, fix reciepts after buying books

[adhithin]

• [x] finalize home page with all links on nav
• [x] look into ui designs and incorporate what you've learned with bootstrap
• [x] fix receipts and smtp email, so that the user can get a receipt with the book they order

[adhithin]

verified by all

[krispykreme14]

verified by ketki

[dayita-ray]

verified by Dayita

[aditiakella]

verified by aditi