"DevOps" category now "Site Operators"

Hi everybody!

Just a note that we’ve changed the “DevOps” category to be called “Site Operators”

“DevOps” is not a clear term for people across the world. We’re hoping “Site Operators” will more clearly convey that the category is meant to help anyone trying to install, run, and operate an Open edX instance. It should also be used to ask questions about deploying with Tutor.