How can I fill the HTML document by the content from JSON using mustache or handlebars?

I need to make HTML, to use a mustache, or handlebars to fill itself with the content of the JSON file. Looking for lessons I found an interesting service for testing this bunch of Handlebars-JSON: tryhandlebarsjs.com

Explain to me please, what files should be used to link Handlebars, JSON and HTML together, and how to set up the connection (links?) between them to make it work? I would be grateful for a step by step explanation, since there are a lot of new for me in this approach. Thank you very much in advance.