Update whatsnew to use correct docs reference

Author: thetestspecimen

doc/source/whatsnew/v3.0.0.rst

@@ -422,7 +422,7 @@ Plotting
 ^^^^^^^^
 - Bug in  :meth:`.DataFrameGroupBy.boxplot` failed when there were multiple groupings (:issue:`14701`)
 - Bug in :meth:`DataFrame.plot` that causes a shift to the right when the frequency multiplier is greater than one. (:issue:`57587`)
-- Bug in :meth:`MPLPlot._plot` ignoring parameter ``style`` when using error bar parameters ``yerr`` or ``xerr`` (:issue:`7023`)
+- Bug in :meth:`DataFrame.plot` ignoring parameter ``style`` when using error bar parameters ``yerr`` or ``xerr`` (:issue:`7023`)
 
 Groupby/resample/rolling
 ^^^^^^^^^^^^^^^^^^^^^^^^