Creating MySQL leaderboard

Creating MySQL leaderboard

I'm quite new to programming and certainly to anything that is website
related. I'm 16 years old, so don't make it too complicated :)
I'm trying to make a leaderboard made out of MySQL data. The MySQL data
comes from a plugin on a minecraft server. So I linked the plugin's data
to a MySQL database, called iConomy
In the database I made 2 tables atm: iconomy and bitcoin
The meaning is that a leaderboard would be displayed on the website as:
Rank Number | Username | Bitcoin | Balance
1. |Nicolas | xxxxxxx | 1500
So 1 would be the rank number, Nicolas my username, bitcoin my bitcoin
adress. And balance my current money in game. That data gets provided by
the plugin that I succesfully linked into the MySQL database that I
mentioned.
Reading through a few posts and copying a bit of code, I came to this php
code:
<?php
$result = mysql_query("SELECT username, balance, adress FROM iconomy,
bitcoin ORDER BY balance DESC");
$rank = 1;
if (mysql_num_rows($result)) {
while ($row = mysql_fetch_assoc($result)) {
echo "<td>{$rank}</td>
<td>{$row['username']}</td>
<td>{$row['balance']}</td>
<td>{$row['adress']}</td>";
$rank++;
}
}
?>
So as you can see i have the username, balance, adress which i get from
the tables iconomy and bitcoin (thats where the adresses would be stored).
I don't know if this code is right, thats why I came posting here.
But if it is (this will sound stupid), how do i make a decent webpage of it.
How do I succesfully link that php file into a webpage?
Thanks in advance!