Add evaluation results on the default config and test split of xsum

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Your model has been evaluated on the default config and test split of the [xsum](https://huggingface.co/datasets/xsum) dataset by

@sasha
, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-eval-xsum-default-0288cc-93201145793).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=xsum).\
Evaluate your model on more datasets [here](https://huggingface.co/spaces/autoevaluate/model-evaluator?dataset=xsum).

README.md

@@ -1,11 +1,53 @@
 ---
 language: en
 license: apache-2.0
-datasets:
-- cnn_dailymail
 tags:
 - summarization
 - bart
+datasets:
+- cnn_dailymail
+model-index:
+- name: ainize/bart-base-cnn
+  results:
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: xsum
+      type: xsum
+      config: default
+      split: test
+    metrics:
+    - type: rouge
+      value: 15.9111
+      name: ROUGE-1
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZTQ1MWVhMTEwYTM5NDM1OGNkMmE4ZjQwM2YxZWFjMWY3Y2U1NjUxMzRhOTJkMDU4ZGNmYWY5NTFjNTJlNGRiMyIsInZlcnNpb24iOjF9.yL8i1kpg7_Wl1h5OmE6sRj-NOkjUE2XGxnWGquf-V98OGfGIr4qJoowBH44WUMwHgAp5zYOZu1lQ0bKnS_DFCQ
+    - type: rouge
+      value: 2.2659
+      name: ROUGE-2
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiMDM0NzIzMzdjODk2ZThiMWY3NTYyM2MwZTRlMjAwMGNhYzRkMGI3YjBlZDliOWQ0NzE5YmJiN2VkY2FiZjkzMyIsInZlcnNpb24iOjF9.wD5cYWVfJhGYBqzXGbkPcF_DOACZBFlIor60H8wMeyP-HqdQfbyiDn2l4yHEfUO-KG0-VggEscHdC6jyNVGdBA
+    - type: rouge
+      value: 12.5698
+      name: ROUGE-L
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNjk5ODEwN2JiM2FjMjU1ZDU4ZDI3YTg0NDUyZGMxMDllYTRmYTk2MmUwNDQ2YTZhMTUzMTJkOGRmY2UwODA4MSIsInZlcnNpb24iOjF9.C0wV07dMEw45YhUJChD7K0cIsPrCamtmBHcwlPbKqiiHbh7o4VD0M59hq8ebqtMF6d8luX1oLvop4uorSFHZBw
+    - type: rouge
+      value: 12.758
+      name: ROUGE-LSUM
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYTEzMzY2YTQxN2I0M2JkMDZmMDNlYTg0MDdmMDM0ZDE5M2FiMmJiNTlkODQ4ZDU1NDQ1ZGRiOWMzNjRhMjlkYiIsInZlcnNpb24iOjF9.bYbTLmX3CGxjGcZ4ZKawNjJgTOQbm6n4_WxPGl1oKZ0MWE8NoksNFfrngELpeKDLp77Q2R6xVBpWOOAfVg9MCA
+    - type: loss
+      value: 3.000685214996338
+      name: loss
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNmI1ODgxODE5ZGVjYWRjZjc4MzE2ZGJkOWQ5YmZhNTI5ODg2MGViZTY2ZTFiNmY4ZGZlZTkzZDNmYWY3ZDI0OCIsInZlcnNpb24iOjF9.ZZypjF37XDou0f-0gZYvX9NWgolxEVCQk8JB8gVLz_V5OcvsN87AveMOYUILOeN4aRn8Jbx1XW2ooezUfYI5Dg
+    - type: gen_len
+      value: 19.9911
+      name: gen_len
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNzVkMDI2MjM3NDhkMDkxOGE1MzcxYzAwMTFlZTQxYTY4YWM5ZTA3NTI0YzM4NWJjZWQwYjU2NGM4OTRmMDAxNSIsInZlcnNpb24iOjF9.iT1celIuHcp0qPaF561jcd9eqOQe8BQZ6MHfdwXLyHxeGDJzdrZuxlh816bv_11ts1Mh1uYSqU6Phk3CT_OPDA
 ---
 # BART base model fine-tuned on CNN Dailymail