This used to be the repo for gathering feedback about The Cauldron, and refers to an ancient version of it.
The current version of The Cauldron is being developed in the cauldronio GitLab project, where you can find most of the documentation, including how to provide feedback. In particular, there is the cauldron repo, where you can submit an issue with your feedback, and the Cauldron Community Site where you can find documentation, news, and interact with the Cauldron community.
[The cauldron.io site described here was substituted by a new from-scratch implementation in early 2020]