Link color updates - Eclipsecon.org

Created by: ChristieWittEclipse

On Eclipsecon.org, for example this page https://www.eclipsecon.org/2020/registration we'd like all links (both visited and not) to be orange, so please change:

//** Global textual link color. @link-color: @brand-tertiary;

//** Link visited color @link-visited-color: #af6e3d;

To use the orange: @brand-quaternary: #ff7300; // orange