updates jp url

index.Rmd

@@ -159,7 +159,7 @@ If you find the project of use and interest, you can get involved in many ways,
 - Supporting community translations
   - The Spanish version: https://r.geocompx.org/es/
   - The French version: https://r.geocompx.org/fr/
-  - The Japanese version: http://babayoshihiko.ddns.net/geo/
+  - The Japanese version: https://r.geocompx.org/jp/
 
 Further details can be found at [github.com/geocompx/geocompr](https://github.com/geocompx/geocompr#geocomputation-with-r).