Mount Vernon Road

Changing road ID #2972033600 functional class from 6 (Minor Collector) to 6 (Minor Collector).
### Description
Minor Collector connecting Gratis Road and US 78
### Justification
Road Name incorrectly shown as "Michael Road" at Gratis Road Intersection.  Correct road name and change FC to minor collector from Gratis Road to US 78.
#### From
Gratis Road
#### To
US 78
#### County
Walton County