README updated

The text data (title and abstract) of 164230 arXiv preprints which are associated with at least one MSC (mathematical subject classification) code. Predicting 3-character MSC codes based on the cleaned text (processed title+abstarct) amounts to a multi-label classification task.

README.md

@@ -1,3 +1,9 @@
 ---
 license: mit
----
+task_categories:
+- text-classification
+language:
+- en
+size_categories:
+- 100K<n<1M
+---