We have README files displayed on the main page of a repository, but we don't do that on subfolders.
In the previous commit, we returned these from the knotserver in the RepoTreeResponse. We now need to do something similar to what we do on the index page on the individual tree pages...
Signed-off-by: Skyler Grey minion@freshlybakedca.ke
Superseded by https://tangled.org/@tangled.org/core/pulls/583