added bug fix in what's new for 3.0

Author: Maru5er

doc/source/whatsnew/v3.0.0.rst

@@ -698,6 +698,7 @@ I/O
 - Bug in :meth:`read_stata` raising ``KeyError`` when input file is stored in big-endian format and contains strL data. (:issue:`58638`)
 - Bug in :meth:`read_stata` where extreme value integers were incorrectly interpreted as missing for format versions 111 and prior (:issue:`58130`)
 - Bug in :meth:`read_stata` where the missing code for double was not recognised for format versions 105 and prior (:issue:`58149`)
+- Bug in :meth:`set_option` where disabling pandas option display.html.use_mathjax has no effect (:issue:`59884`)
 
 Period
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