Bug Description

There were a couple of typos noticed during the TMAP8 workshop:

• The link to the STM tutorial slides does not work. It seems that it does work today.
• In SideDiffusiveFluxAverage, there is no equation explanation of what the object is actually doing.

Steps to Reproduce

Build the documentation and look at the relevant pages/locations.

Impact

Broken links and unclear documentation.

[Optional] Diagnostics

No response