Tidy NEWS entry.

Misc/NEWS.d/next/IDLE/2017-10-12-00-51-29.bpo-13802.VwjZRD.rst

 Use non-Latin characters in the IDLE's Font settings sample.
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 Even if one selects a font that defines a limited subset of the unicode
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 Basic Multilingual Plane, tcl/tk will use other fonts that define a
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 character.  The expanded example give users of non-Latin characters
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 a better idea of what they might see in IDLE's shell and editors.
 
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 To make room for the expanded sample, frames on the Font tab are
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 re-arranged.  The Font/Tabs help explains a bit about the additions.