Update getstarted.html

- Added CoinPayments.net as a Payment Processor under "Accept Darkcoin".
- Added (temporary) link to "Accepted Here" buttons.
Update getstarted.html

Amended to add additional payment processors.
Update getstarted.html

- Amended to add bittylicious.com under "Buy Darkcoin".
Merge pull request #17 from raze182/patch-4

Update getstarted.html