How to descale keurig with vinegar?

Can someone tell me how to descale a Keurig with vinegar? My Keurig is my best friend  . I can't get by a day without my coffee. But it's not working as well as it used to and I think it wants to be cleaned. I try to avoid chemicals so I like to clean just about everything in my house with (white) vinegar. Does anyone know how to descale a Keurig with white vinegar? Thanks!

q how to descale keurig with vinegar

This is the model that I have (image is from Amazon).

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