Add evaluation results on the mlqa config and test.ar split of xglue

Beep boop, I am a bot from Hugging Face's automatic model evaluator 👋!\
Your model has been evaluated on the mlqa config and test.ar split of the [xglue](https://huggingface.co/datasets/xglue) dataset by

@Anwaarma

, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-eval-xglue-mlqa-02a2ef-48376145243).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=xglue).\
Evaluate your model on more datasets [here](https://huggingface.co/spaces/autoevaluate/model-evaluator?dataset=xglue).

README.md

@@ -1,10 +1,52 @@
 ---
 language: en
 license: apache-2.0
-datasets:
-- xsum
 tags:
 - summarization
+datasets:
+- xsum
+model-index:
+- name: google/roberta2roberta_L-24_bbc
+  results:
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: xglue
+      type: xglue
+      config: mlqa
+      split: test.ar
+    metrics:
+    - type: rouge
+      value: 0.0213
+      name: ROUGE-1
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYjRhNmFhMDhmNTllNWM3ZjFlMTNjZDcxNDU1ZmU5YmRhZjczNTQwMjQ4MDQzMDY5NGNhZDhkM2EzM2NiODg1MyIsInZlcnNpb24iOjF9.-BNXeOa4KVK5T7kX1oDGpFWE1fiPV0HSafnwbm5cnaxM8c1BnZmfLu8uvRPCgiurWjgSQihk4og4hkcfdvffBQ
+    - type: rouge
+      value: 0.0019
+      name: ROUGE-2
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZTQ0OTBmNDc1NjkxMGM3ODJlMDY1YjJlYTQyNzFhZGYyNzA1NTIyYjkwYWUxNzk0MDc5NjU0NTc1ZDU3YTY0MyIsInZlcnNpb24iOjF9.x0cqOoYSUIMjJnWTF2p9rntIRYJQGbGhm_K_UbkDKiIX9eYmRr9jO7pXHx_35TZVDbkYjG39PZMTwxXxu_I-CQ
+    - type: rouge
+      value: 0.0201
+      name: ROUGE-L
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYjExOTEwZjA5ODQwNWRjMWQ0MGFmYzJiYjdlYmU4YjA0NGZlYTBmY2VkOTQ3YTFkOTUyZjdiOTg0N2E0YmQ3ZCIsInZlcnNpb24iOjF9.C1j9T_WQrGeHmJLDBDXMlLHxPjzb0kaAp7MdNuDno4tehA-WV8QMOEwQTaJc7QtRveeH1wrrsYgKxZ4P-6NEAA
+    - type: rouge
+      value: 0.0196
+      name: ROUGE-LSUM
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZGFiOTVjNTEzNDBlMGIxNTc2MTZhN2I2MjUzN2U1ZGM3ZDVkYjhmNTdjZjA2OGUxZjlkYjY3YjhjODAwMzYwZCIsInZlcnNpb24iOjF9.mUtFHxPvgbB9CPonENnm_lynnps3Z2q5ncKBf0ZkzVc1E28cNN37OE_aUhLTqvdcZ2hwUqS4zHJlndZv1PONAg
+    - type: loss
+      value: 6.101626396179199
+      name: loss
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiMmI4M2UxZTE1ZmM4NzhkZjI4NDk1MzUwOGVjNjZlZThkMmVkOGM4YzU3MjRiOTZkMjFjZTU5YTJhNWJhNzJmNSIsInZlcnNpb24iOjF9.M8qQtenTtqRVTBHt23uY1XqRL3hGNJv4JgXeJlHV0xWnc8xp8b2b_ycvOh7FwZzcW2gPUVJmU8hpqozHTUkXDQ
+    - type: gen_len
+      value: 42.5961
+      name: gen_len
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiODExYmMxZDQ3ZWM0Yzc5ZjgxZmI0ZjQ3MGNlMDEwNmNhZDVkMjZmYTU1MzBjZWQ4YWM0MjRhYjM3NDZlMTI0MCIsInZlcnNpb24iOjF9.U2blxgJeU7XDoP8sU4AInQmewyVhgnJ0qPQXGCx5d-cqSsx0WveMpgx93Yxedb_r7mbrVigOwIpZm03M_Y6oBg
 ---
 
 # Roberta2Roberta_L-24_bbc EncoderDecoder model