docs: add initial version

README.md

@@ -1,3 +1,32 @@
----
-license: cc-by-4.0
----
+---
+license: cc-by-4.0
+language:
+- de
+size_categories:
+- 10K<n<100K
+---
+
+# UD German-HDT: Tokenized Sentences
+
+This datasets hosts a sentence-tokenized version of the [Universal Dependencies German-HDT](https://github.com/UniversalDependencies/UD_German-HDT) dataset.
+
+## Creation
+
+The following script can be used to reproduce the creation of the dataset:
+
+```python
+import json
+
+from flair.datasets import UD_GERMAN_HDT
+
+corpus = UD_GERMAN_HDT()
+
+with open("./train.jsonl", "wt") as f_out:
+    for sentence in corpus.train:
+        current_example = {
+            "text": sentence.to_tokenized_string()
+        }
+        f_out.write(json.dumps(current_example) + "\n")
+```
+
+The extracted dataset has 153,035 sentences.