One Year Of Rust post features wrong image.

[XAMPPRocky]

The One year of Rust linked to an image (http://rustcamp.com/images/after/cupcakes.jpg) from an expired domain.

[bjorn3]

The original: https://web.archive.org/web/20170628094740/http://rustcamp.com/images/after/cupcakes.jpg

[XAMPPRocky]

If anyone is interested I would accept a PR that adds that image to the repository and replaces the link.

[dtolnay]

It would be good to scrub all the posts of hotlinked images, even if they are not currently broken.

[XAMPPRocky]

@dtolnay Good point! I made a seperate issue to track that.