removes space in hyperlink in graphics workshop
removes space in hyperlink in graphics workshop

hotfix a space in the hyperlink on line 11 of W16-event-graphics-workshop.md
arshiamufti/website,fboxwala/website,claricen/website,ehashman/website-wics,ehashman/website-wics,arshiamufti/website,annalorimer/website,evykassirer/wics-website,fboxwala/website,evykassirer/wics-website,fboxwala/website,annalorimer/website,evykassirer/wics-website,annalorimer/website,arshiamufti/website,claricen/website,claricen/website,ehashman/website-wics