Fix confusable same site examples The results shown in the example table for "same site" and "schemelessly same site" algorithms are based on assuming that "suffix.example" is a public suffix. Since it actually isn't, this causes confusion. This commit replaces "suffix.example" with "wildlife.museum" which is a valid public suffix from the Public Suffix List (https://publicsuffix.org). It also explicitly states all of the public suffixes involved in the examples. Closes #5316.