RCC Support Tutorial

[Bradisverycool]

Describe the problem

There is no RCC built in. It means that you can't play roblox from a Mercury Core server.

Describe the proposed solution

I think its a good idea to add a official tutorial in the readme. So we could make Mercury Core public servers a thing.

[Heliodex]

Documentation on how to set up RCCService (and proxies) was recently made available at docs.mercs.dev/services/rcc, and some more RCC-related tools at tp-link-extender/RCCService. Do let me know if this helps!

[Heliodex]

A more in-depth RCCService and Proxy server setup guide is now also available at docs.mercs.dev/guides/rccsetup, see #405 for more info