Quote some other paths in `install_workflows.sh`
Quote some other paths in `install_workflows.sh`

There are a few usages of path arguments that are not currently quoted.
This makes sure those arguments are quoted to deal with any painful
characters that might show up.

nanshe-org/docker_nanshe_workflow,DudLab/docker_nanshe_workflow,nanshe-org/docker_nanshe_workflow,DudLab/docker_nanshe_workflow