clean up render-path docs a bit
clean up render-path docs a bit

replay/metrictank,raintank/metrictank,raintank/raintank-metric,raintank/metrictank,raintank/metrictank,raintank/raintank-metric,raintank/metrictank,replay/metrictank,raintank/raintank-metric,replay/metrictank,replay/metrictank