Add url method to github issues
Add url method to github issues

Fixes #567

librariesio/libraries.io,samjacobclift/libraries.io,librariesio/libraries.io,samjacobclift/libraries.io,abrophy/libraries.io,tomnatt/libraries.io,abrophy/libraries.io,tomnatt/libraries.io,abrophy/libraries.io,librariesio/libraries.io,samjacobclift/libraries.io,librariesio/libraries.io,tomnatt/libraries.io