Update Documentation for Future Maintenance

Reviewed all existing documentation, making updates with the latest version of the source code.

Made minor update to the MR template.

[x] Add a description of your pull request and instructions for the reviewer to verify your work.
[x] If your pull request is for a specific ticket, link to it in the description.
[x] Stay on point and keep it small so the merge request can be easily reviewed.
[x] Consider adding unit tests, especially for bug fixes. If you don't, tell us why.
[x] Tests and linting passes.
[x] Consider updating documentation. If you don't, tell us why.
[x] If relevant, list the environments / browsers in which you tested your changes.

torchbox / careers