Now that tile.openstreetmap.org supports HTTP/2 + HTTP/3 the old (a|b|c).tile.openstreetmap.org is no longer recommended.
Use tile.openstreetmap.org directly is faster and will likely result in a better cache hit ratio.
Signed-off-by: Grant Slater <git@firefishy.com>
Signed-off-by: Grant Slater <git@firefishy.com>