UPD readme en

.gitattributes

@@ -1 +1,2 @@
 *.pdf filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text

README.md

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 [![en](https://img.shields.io/badge/lang-en-red.svg)](https://git.kuschel.at/latex-kalender/README.md)
 [![de](https://img.shields.io/badge/lang-de-green.svg)](https://git.kuschel.at/latex-kalender/README-DE.md)
 
+The package used defines a macro \Kalender, which takes one argument, and generates a calendar for the year the argument specifies.
+The calendar provides a table of conversion of days to day of week, for the whole year plus December of the previous year and January
+of the following year.
 
+The macros use packages calc and ifthen.
+
+![The Kalender](img/kalender2025-1.png){:height="36px" width="36px"}
 
 # Kalendererstellung in Latex