Add a doc comment to CT package (#83)
Add a doc comment to CT package (#83)

* Add a doc comment to CT package

Make it clear that only code in examples/ct should reference the CT
repository.

* Add CT repo URL

gtank/trillian,gdbelvin/trillian,Martin2112/trillian,gtank/trillian,RJPercival/trillian,RJPercival/trillian,gdbelvin/trillian,daviddrysdale/trillian,AlCutter/trillian,daviddrysdale/trillian,codingllama/trillian,AlCutter/trillian,Martin2112/trillian,google/trillian,google/trillian,codingllama/trillian,gdbelvin/trillian,Martin2112/trillian,daviddrysdale/trillian