fatal: Could not parse object '7451ea860ef1206492a45d6fc8e10fc0e8d15b7c'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at 7451ea8 Removed mkdocs based documentation.
7451ea860ef1206492a45d6fc8e10fc0e8d15b7c