#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // make GET request to target URL and retrieve response
    //...

    // convert HTML to Markdown
    let md = html2md::parse_html(&resp);

    // create a Markdown parser
    let parser = pulldown_cmark::Parser::new(&md);

    // iterate over the events in the parser
    for event in parser {
        match event {
            pulldown_cmark::Event::Text(text) => {
                // check if the text contains the price
                if text.contains("$") {
                    println!("Price: {}", text);
                }
            },
            _ => {},
        }
    }

    Ok(())
}