This tutorial Multiple Species-Site Occupancy Model (mc-stan.org) by @Bob_Carpenter has a broken link.
The example data is at https://esapubs.org/archive/ecol/E087/050/butterflyData.txt
not http://esapubs.org/archive/ecol/E087/050/butterflyData.txt
Notice the https
vs http
.
Where do I submit a pull request for this documentation?