Use Apptainer (Singularity) Environments

The contents of this page have been updated and split into the following guides:

• "Use Apptainer Containers": https://chtc.cs.wisc.edu/uw-research-computing/apptainer-htc
• "Building an Apptainer Container": https://chtc.cs.wisc.edu/uw-research-computing/apptainer-build
• "Advanced Apptainer Example - SUMO": https://chtc.cs.wisc.edu/uw-research-computing/apptainer-htc-advanced-example