Docs request: Reframe the "running an analysis module" doc

### What is the documentation improvement or update you wish to see?

While looking over https://openscpca.readthedocs.io/en/latest/contributing-to-analyses/analysis-modules/running-a-module, I wondered if we achieved the right scope for this page. To me, the title "running an analysis module" implies does on how someone else could run a module. Yet, we mostly discuss writing a script that enables running the analysis module, which is more a concept related to authors establishing a module, vs contributors running a module. In addition, we don't include any discussion of setting up an environment to run a module besides simply stating "the readme should have all the info."

### Is there any additional context you would like to provide?

Just tagging in @dvenprasad for any thoughts on whether this page suits us and discuss what updates/reorgs we might benefit from.

### If this request is for an existing documentation page, please provide the link here.

https://openscpca.readthedocs.io/en/latest/contributing-to-analyses/analysis-modules/running-a-module/

Read the linked running-a-module page and compare its current focus on writing a script with the stated audience of contributors running a module. Clarify the intended scope with the maintainers, then reframe or reorganize the page to address running a module and environment setup, with the revised page making that scope clear.

Written by the indexing model from the issue text.