Fixed/improved link to discipline
Fixed/improved link to discipline

See https://groups.google.com/forum/#!topic/typelevel/Xg2uGbtNa-0
S11001001/typelevel.github.com,melrief/typelevel.github.com,typelevel/typelevel.github.com,S11001001/typelevel.github.com,typelevel/typelevel.github.com,melrief/typelevel.github.com,typelevel/typelevel.github.com,melrief/typelevel.github.com,S11001001/typelevel.github.com,melrief/typelevel.github.com,S11001001/typelevel.github.com