readme: some more additions

README.md

@@ -83,4 +83,17 @@ Note: we include a `-DOCSTART-` marker to e.g. allow document-level features for
 
 ## Dataset Splits
 
-For training powerful NER models on the dataset, we manually splitted the dataset into training, development and test splits.
+For training powerful NER models on the dataset, we manually document-splitted the dataset into training, development and test splits.
+
+The training split consists of 73 documents, development split of 13 documents and test split of 14 documents.
+
+We perform dehyphenation as one and only preprocessing step. The final dataset splits can be found in the `splits` folder of this dataset repository.
+
+# Release Cycles
+
+We plan to release new updated versions of this dataset on a regular basis (e.g. monthly).
+For now, we want to collect some feedback about the dataset first, so we use `v0` as current version.
+
+# License
+
+Dataset is (currently) licenced under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).