Broken `editor.p5js.org/ml5` sketches due to missing file (`clouds.jpg`)

[jchwenger]

Hi there,

Not sure it's the right place to open this issue, but I noticed a number of example sketches (see this one, for instance, accessed from here) are broken because the file they need (which exists in the repo) hasn't been uploaded to the editor. Maybe it's a pipeline thing, if you automatically transfer the sketches from the repo to the editor? In any case, it looks like a quick fix.

Best,
Jeremie