Update README.md

The Kazakh Literature Collection is a dataset consisting of works mostly by Kazakh authors. This collection includes novels, poems, and other literary works, providing a comprehensive representation of Kazakh literature. All texts are in Kazakh.

README.md

@@ -1,4 +1,6 @@
----
-language:
-- kk
+---
+language:
+- kk
+size_categories:
+- 100K<n<1M
 ---