Clean up and fix various issues in Resources

Add an automatic table of contents for various pages so it does not need to be manually updated when the document is changed.
Turn on relative links so you can link directly to .md files and it will be converted to a link to the actual html file.
Update the main Resources page to list all the pages
- I think this page still needs more information, but at least it doesn't look so blank now.
Set a specific order for the Resource pages
- Previously only the "Senior Seminar Resources" and "Course Description" pages were locked into their order and the rest would change every build.
- I made this order loosely based on the existing README in the repo and what I thought works, if you have any suggestions for how to order the pages better, please mention it.
Fix various errors in resource pages like bad links.
Change the headers in many pages to have a better hierarchy and look better.

You can view what these changes look like on my fork here: https://floogulinc.com/senior-seminar/resources/.

UMM-CSci / senior-seminar