Remove false advertising

[AnthonyFuller]

As title.

[quantix-dev]

I think this also needs changing on the documentation because I got misled into thinking it was ~3MB

[filiptibell]

The README is outdated and Lune has grown substantially since it was last updated - no false advertising was intentional on my end, I'm sorry if it came across that way. We should probably just remove mentions of a specific binary size altogether since I don't expect Lune to stop growing at this moment in time, if you do want a smaller binary you can compile from source with --no-default-features and enable only the libraries / built-ins you want

[AnthonyFuller]

Hello! I have just posted some messages in your Discord! But I'll add it here:

I'd like to make clear that it was a joke. I'm not actually accusing you of false advertising. I definitely could've been more clear on it, but at the time I did not expect it to be perceived as an attack.

Everyone was upvoting it because they found it funny, not really because they agree.

Verde (I have no idea what Azul is) is not even related to this.

Which might I add is an alternative system, not a hard fork [of Rojo].

EDIT: Feel free to squash and merge it under another name, for example: chore: update file size in read me.