What does Gulliver do to earn money when he returns to England from Lilliput?

In Jonathan Swift's "Gulliver's Travels," Lemuel Gulliver becomes a successful author by documenting his adventures. He earns money by publishing the accounts of his travels to Lilliput, Brobdingnag, Laputa, and Houyhnhnms, which captivate the public and make him famous.