Revert "Update config_layer.md"
Revert "Update config_layer.md"

This reverts commit 298fb56487a4e0d2c5dba81aee0dafeb8a0ebf4c.

nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth,nasa-gibs/onearth