CTAN update: nicematrix

[CTAN Announcements]

François Pantigny submitted an update to the

                nicematrix

package.

Version number: 3.4 2019-10-05
License type: lppl1.3

Summary description: Several features to improve the typesetting of 
mathematical matrices with TikZ

Announcement text:
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Following a discussion on TeX StackExchange 
(tex.stackexchange.com/questions/510841/nicematrix-and-tikz-external-optimize) 
this version allows the utilisation of 'nicematrix' with both 'standalone' 
and the optimization of Tikz externalization.


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This package is located at 
   http://mirror.ctan.org/macros/latex/contrib/nicematrix

More information is at
   https://www.ctan.org/pkg/nicematrix

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   Thanks for the upload.

     For the CTAN Team
    Erik Braun

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