[README] Replace v6.14 by 6.18 in build status table.
[README] Replace v6.14 by 6.18 in build status table.

karies/root,karies/root,karies/root,karies/root,karies/root,olifre/root,olifre/root,karies/root,karies/root,root-mirror/root,olifre/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,olifre/root,olifre/root,karies/root,root-mirror/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,olifre/root,karies/root,olifre/root,karies/root,root-mirror/root,olifre/root