Hex sticker source files

[mitchelloharawild]

@emitanaka Do you have the source files used to produce the hex sticker? I typically put them in the /hex folder of a repo. If you have them, could you please provide them?

[emitanaka]

Just did a thorough check but unfortunately can't locate it. I suggest we make a new one anyhow because the original one isn't that great

[mitchelloharawild]

We'll keep the hex sticker as is, it's good enough. I've brought in the hex sticker from the documentation into /hex.