Redirections should be in place when resources are renamed, for example with https://github.com/princomp/princomp.github.io/commit/1a20634f5d836a1c7fc136b3784d7145f81c3f4c and https://github.com/princomp/princomp.github.io/commit/f24f7d3911919149c9bc77e3ef959c8414e52511