Double Exponential Moving Average 8-20-63 Strategy

Hello, this script was made upon the request of aliergin63, one of my followers.
I do not know exactly from whom it is quoted. (It may be author HighProfit.)

Long position when 8 dema is over 20 dema and 63 dema,
it opens a short position for the vice versa.
Alarms have been added.
%0.1 comission added.
Regards.

Note : DEMA = Double Exponential Moving Average