Remove note.
Remove sponsors.
Added new Laravel book
Corrected misspelling

Very minor but irritating misspelling of the project name in the quick start guide :)
Merge pull request #506 from BillinghamJ/patch-1

Corrected misspelling
Merge pull request #505 from msurguy/patch-3

Added new Laravel book
Edited explanation of associate method

Try to clarify which object the associate function needs to be run
against