"Users simply need to turn on Brave Payments from within Brave’s preferences page, then fund their Brave wallet (either with Coinbase, or by using Bitcoin they already have), and then browse as usual. While everything is automatic, once enabled, the Brave Payments UI allows you to control which sites receive your support by manually enabling or disabling funding for any of the sites you visit." I'm a webmaster, how would I collect payments made to my site?