markets: List markets

curl 'https://api.coinranking.com/v2/markets?limit=20'

import requests

resp = requests.get(
    "https://api.coinranking.com/v2/markets",
    params={
        'limit': '20',
    },
)
data = resp.json()

import zingu_apis

api = zingu_apis.api("coinranking")
result = api.fetch("markets", limit=20)

for item in result:
    print(item)

const resp = await fetch("https://api.coinranking.com/v2/markets?limit=20");
const data = await resp.json();