Is your feature request related to a problem? Please describe.
We encode some state (worker ID) in the URL for git repositories to avoid extra work on every annex object request (requiring a service instead of the load balancer for routing). It would be better to simplify down to at least something basic like https://openneuro.org/git/ds000001

Describe the solution you'd like
https://git.openneuro.org/ds000001 and/or https://openneuro.org/git/ds000001 are both viable solutions and one or both should be supported and used as the URL presented to users even if the internal URL path is still used by tools.

Additional context
#1961 (comment)