I encourage everyone to define its own strategy, I've just explained how I'm gonna use it. Do your tests before using it otherwise you could lose money.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.