[3.12] gh-114967: Fix "Built-in Exceptions" documentation ambiguous wording (GH-114968) (#115033)

Change the somewhat vague "listed below" to "listed in this chapter" in Doc/library/exceptions.rst.
The exceptions are listed in multiple sections after two intermediate sections.
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(cherry picked from commit 750489cc774df44daa2c0d23e8a404fe62be93d1)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: HarryLHW <123lhw321@gmail.com>