QC description is in the wrong place

Kenta put in the QC descriptions, but they aren't showing up in the portal.

This is because it's placed in "evaluation" when it should be in "QCMetric.description"

Per Dan Birman,

> Oh I see you put the descriptions in the evaluation. Yeah those descriptions aren't useful. Once we iterated a bit on the QC portal UI we realized they didn't actually have a place to live

This is what it's supposed to look like (Per Johannes' alignment fix QC):

This is what it looks like right now:

This is the "QC.Metric.description" and that it's empty: