Update README.md

Author: TimoMolls

README.md

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 # BO4E-Java
 
-This repository contains the java classes for the BO4E standard.
-They are created automatically from the [BO4E-Java-Generator](https://github.com/TimoMolls/BO4E-Java-Generator) repository.
+This repository contains the java classes for the [BO4E-Standard](https://bo4e.github.io/BO4E-python/stable).
+They are created automatically by the [BO4E-Java-Generator](https://github.com/TimoMolls/BO4E-Java-Generator) using the [BO4E-Schemas](https://github.com/bo4e/BO4E-Schemas).