Breaks on encountering punctuation characters, e.g. ’

As `\p{P}` is not included in the URL regex, a URL such as `https://www.gallerieswest.ca/magazine/stories/manitoba’s-métis-history/` gets incompletely linked.

Adding `\p{P}` to the regex fixes this issue. Whether it's "valid" for a URL to contain such a characters is maybe a reasonable question, but CMS' are out here doing it, so it makes sense to cover that scenario.