How to rip HTML source code from url?

So I'm working on a discord bot which should notify users whenerver they have a scheduled match on gamebattles.com. I'm using javascript to do said thing. Now the problem I'm running into is that I can't find a way to rip the needed information from the website. All I would need is the html source, in which i can search for the scheduded matches.

Please note that I'm not really good at coding, nor do I have a good understanding of what I'm doing. (also English is not my native language)

That's what I have come up with up until now.

    <html lang="en">
        <head>
            <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
            <script>
                function gethtml() {
                    var link = document.getElementById("url").value;
                    if(link == "")
                        return;
                    $.ajax({ url: link, success: function(data) { document.getElementById("html").innerHTML = data; }});
                }
            </script>
        </head>
        <body>
            Enter url:  <input type="url" id="url" size="100">
            <button type="button" onclick="gethtml()">Get html</button>
            <br/><br/>
            <div>
                <textarea id="html" rows="30" cols="200"></textarea>
            </div>
        </body>
    </html>

The URLs will look like this

http://gamebattles.majorleaguegaming.com/ps4/call-of-duty-black-ops-iii/team/27636170
JQuery         Ajax        
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