add this to the the rules

Concise description:
Specifics:
This will improve the following aspects of the site:
- add "do not send auto-join links without warning people what they are" to the rules
Specifics:
- i was in live chat and someone sent a link and i clicked it and almost got stuck in a game i didnt want to be in...
im pretty sure its against the rules but he probably didnt know that so i dont want to report him
This will improve the following aspects of the site:
- everyone would know that its not allowed and it wouldnt happen