User blog:Great Zombie.2/What's Mainspace edits?

Hey guys I might know this might be a stupid question to ask you but what is a Mainspace edit? You are probably sit there going "boy this guy is an idiot, he doesn't know what a Mainspace edit is!" And that's totally reasonable for u to do that because I am I sort of and idiot to somethings in life, I can just go on for hours about it, but it would be really helpful if you did answer this and the comments please, and yes I will accept comments like "boy your an idiot" and all that because I'm really am at this stuff.

PLEASE HELP 😥