How to get data from API and output as a list?

Question

API

I have an api with users and statistics: 21.rainixgdps.com/database/api/getTop.php

how to take 'stars', 'userName', 'pos' from this api and output it as a kind of top of players like:

with aiohttp!

The MAXIMUM that I came up with is this

async with aiohttp.ClientSession() as session:
                req = f"https://21.rainixgdps.com/database/api/getTop.php"
                response = await session.get(req)
                res = await response.json(content_type='text/html')


                emb = discord.Embed(description = 
                f"""**────────────────────**
                f"{res['pos'][0]}: {res['userName'][0]} : {res['stars'][0]} :star:"
                """)

                emb.set_author(name="Top 10 player by stars")
                await ctx.reply(embed=emb, mention_author=False)

Well, it gave me:
Extra data: line 1 column 61 (char 60)