CTAN update: nicematrix

[CTAN Announcements]

François Pantigny submitted an update to the

                nicematrix

package.

Version number: 5.14 2021-04-08
License type: lppl1.3

Summary description: Improve the typesetting of mathematical matrices with 
PGF

Announcement text:
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New keys `t` and `b` for the command `\Block`.

Nodes of the form `(1.5)`, `(2.5)`, etc.

New key `corners` (to generalise the behaviour of `hvlines-except-corners`).


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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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