Update README.md

README.md

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 # Dexter
-The [Dexter dataset](https://archive-beta.ics.uci.edu/dataset/109/wine) from the [UCI repository](https://archive-beta.ics.uci.edu/).
+The [Dexter dataset](https://archive-beta.ics.uci.edu/dataset/168/dexter) from the [UCI repository](https://archive-beta.ics.uci.edu/).
 
 # Configurations and tasks
 | **Configuration**     | **Task**                  |