Lesson about proxies mentions `SHADER` group, but it's not in the example

[honzajavorek]

There is the following at the bottom of page Using proxies:

import { Actor } from 'apify';

const proxyConfiguration = await Actor.createProxyConfiguration({
    countryCode: 'US',
});

Notice that we didn't provide it a list of proxy URLs. This is because the SHADER group already serves as our proxy pool (courtesy of Apify Proxy).

The text below the example doesn't make sense, there is no SHADER group. I'm not sure how to fix this.