Certain numbers are expanded as phone numbers with Safari on the iPad

Reading the book with Safari on the iPad causes certain numbers (e.g. sequences of 7 or 8 digits, even if interspersed with spaces) to be recognized as phone numbers and be highlighted in blue as hyperlinks, which is very annoying.
Apparently there is no way to disable this phone number expansion on the client side, but there seems to be a way to disable it on the server side, although **I haven't tried this**: https://stackoverflow.com/questions/226131/how-to-disable-phone-number-linking-in-mobile-safari


Note that this problem does not seem to occur with other Jupyter books (cf. https://xpqz.github.io/learnapl/intro.html and https://xpqz.github.io/cultivations/Intro.html).