tweaked custom header/footer instructions
tweaked custom header/footer instructions

sashakames/COG,EarthSystemCoG/COG,sashakames/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,EarthSystemCoG/COG,sashakames/COG,sashakames/COG,sashakames/COG,sashakames/COG,sashakames/COG