Update dnt.spt
Update dnt.spt

Fix for #2460 - Added links to improve clarity for two other services.
studio666/gratipay.com,eXcomm/gratipay.com,gratipay/gratipay.com,mccolgst/www.gittip.com,gratipay/gratipay.com,studio666/gratipay.com,studio666/gratipay.com,mccolgst/www.gittip.com,eXcomm/gratipay.com,studio666/gratipay.com,gratipay/gratipay.com,eXcomm/gratipay.com,eXcomm/gratipay.com,gratipay/gratipay.com,mccolgst/www.gittip.com,mccolgst/www.gittip.com