Add some details to README file

README.md

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-<!-- This model card has been generated automatically according to the information the Trainer had access to. You
-should probably proofread and complete it, then remove this comment. -->
-
 # xlm-roberta-base-language-detection
 
 This model is a fine-tuned version of [xlm-roberta-base](https://huggingface.co/xlm-roberta-base) on the None dataset.
-It achieves the following results on the evaluation set:
-- Loss: 0.0103
-- Accuracy: 0.9977
-- F1: 0.9977
-
-## Model description
-
-More information needed
 
 ## Intended uses & limitations
 
-More information needed
+You can directly use this model as a language detector, i.e. for sequence classification tasks. Currently, it supports the following 20 languages: 
+
+`arabic (ar), bulgarian (bg), german (de), modern greek (el), english (en), spanish (es), french (fr), hindi (hi), italian (it), japanese (ja), dutch (nl), polish (pl), portuguese (pt), russian (ru), swahili (sw), thai (th), turkish (tr), urdu (ur), vietnamese (vi), and chinese (zh)`
 
 ## Training and evaluation data
 
-More information needed
+It achieves the following results on the evaluation set:
+- Loss: 0.0103
+- Accuracy: 0.9977
+- F1: 0.9977
 
 ## Training procedure