CTAN update: gzt

[CTAN Announcements]

Denis Bitouzé submitted an update to the

                gzt

package.

Version number: 1.0.0 2020-03-17
License type: lppl1.3

Summary description: Bundle of classes for “La Gazette des Mathématiciens”

Announcement text:
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## Added
- CHANGELOG file (following https://keepachangelog.com/en/1.0.0/).
- Semantic versionning (following https://semver.org/).

## Changed
- Compilation date displayed only if the issue number is not specified (`gztarticle` classonly).
- Prevent column breaks within items of "Comité de rédaction" (at the price of unbalanced columns).

## Fixed
- Track changes in `expl3`.
- Superflous uppercases removed.
- Index directive in `latexmk` config file modernized.


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

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

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   Thanks for the upload.

     For the CTAN Team
    Erik Braun

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