Update files from the datasets library (from 1.6.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.6.0

README.md

@@ -12,7 +12,7 @@ licenses:
 multilinguality:
 - monolingual
 size_categories:
-- 1k<n<10k
+- 1K<n<10K
 source_datasets:
 - extended|other-tirasaroj-aroonmanakun
 task_categories:

thainer.py

@@ -1,5 +1,3 @@
-from __future__ import absolute_import, division, print_function
-
 import datasets