docs: update dataset information

README.md

@@ -1,3 +1,19 @@
----
-license: ecl-2.0
----
+---
+license: ecl-2.0
+task_categories:
+- image-classification
+language:
+- en
+tags:
+- public
+- images
+- annotated
+- education
+pretty_name: Eco Sort 256x256
+size_categories:
+- 1K<n<10K
+---
+
+# Eco Sort (256x256)
+
+It delivers 14 268 pre-curated photographs of common waste, evenly split across six material classes: Plastic (2 387), Metal (2 421), Glass (2 398), Cardboard (2 352), Paper (2 403) and Trash (2 307). All images were resized to 256 × 256 px in RGB, duplicates removed and quality-filtered through an ensemble pipeline to ensure balance and clarity. Organized in class-named folders, the set is ready for immediate ingestion into image-classification pipelines for automated waste-sorting tasks.