[fix] broken link in README from #314
[fix] broken link in README from #314

The format changed in 1fcf066, but the link wasn't updated -- until now.

gugod/searx,pointhi/searx,potato/searx,misnyo/searx,matejc/searx,asciimoo/searx,PwnArt1st/searx,dalf/searx,gugod/searx,misnyo/searx,PwnArt1st/searx,PwnArt1st/searx,pointhi/searx,dalf/searx,jcherqui/searx,gugod/searx,GreenLunar/searx,matejc/searx,GreenLunar/searx,potato/searx,jibe-b/searx,misnyo/searx,potato/searx,matejc/searx,asciimoo/searx,jibe-b/searx,jibe-b/searx,GreenLunar/searx,asciimoo/searx,GreenLunar/searx,pointhi/searx,jcherqui/searx,dalf/searx,pointhi/searx,jibe-b/searx,jcherqui/searx,matejc/searx,gugod/searx,jcherqui/searx,asciimoo/searx,dalf/searx,misnyo/searx,potato/searx,PwnArt1st/searx