Stacks example code gives 404

[avehtari]

On page https://github.com/stan-dev/example-models/wiki/BUGS-Examples-Sorted-Alphabetically under "Stacks: "robust regression"" the link to "Stan code" is https://github.com/stan-dev/example-models/blob/master/bugs_examples/vol1/stacks/stacks.stan which gives 404. Unlike other examples, Stacks has 6 different Stan code files (with different residual models) and none of them is named stacks.stan. To fix this there should be 6 links to these different models, or just a link to the corresponding "Stan files" folder.