This repository formats tags nightly from the Ignorance repository here: https://github.com/vis2k/Mirror so that they can be added as a submodule to a Unity project. To add it to your project, use this template of commands:
git submodule add https://github.com/vis2k/Mirror.git Assets/[path to submodule]
cd Assets/[path to submodule]
git checkout [tag version]
For example:
git submodule add https://github.com/vis2k/Mirror.git Assets/Submodules/Mirror
cd Assets/Submodules/Mirror
git checkout v35.1.0
For the Ignorance transport, see: https://github.com/TCROC/Ignorance-Submodule