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

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

@d0rj

, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-eval-xsum-default-199117-68890145630).\
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

@@ -110,6 +110,45 @@ model-index:
       name: gen_len
       verified: true
       verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZTIzNWY2NGEyNjQyMzdmYmM4ZDI5MTVkZDQ0ZTk3NmFiOWRjNTdiMjU3MmQwY2NhZTEzNTVhZGU5NTZhN2JiZiIsInZlcnNpb24iOjF9.7C3OQP2bl0EZRhRlRYtxd6cQapif0a2Vq5kRFiSdX6KLxU_QALZAlh_9DFyyYPh39R3e6Hyi438Ox6BGaalmBA
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: xsum
+      type: xsum
+      config: default
+      split: test
+    metrics:
+    - type: rouge
+      value: 16.1279
+      name: ROUGE-1
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYTgxZjgzZjAwOGViNTNjZDZhNTBhNzUzOTJiYmRkOWM5NDc0MjAxNzdjZDMyMDhlYzFiN2NlNGI5OTVkNDNiOCIsInZlcnNpb24iOjF9.Ix7CPD9gti8W7OMF4NtbMejt6fPEoZRJw2O-GeV-JRkgrIRXkrifGGE55BHdQyEe2KRcAcNCTav6igtiuEd7Cw
+    - type: rouge
+      value: 2.1128
+      name: ROUGE-2
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYmViN2Y2OTA2YmE4YWYyODUxZDljNzkwMTM0ZWQ0ZTdjYWIzOTY0NzZjZTA1ZWNhNmE3OTU0NDAzNjVkMmE4ZSIsInZlcnNpb24iOjF9.G0EZ_XzRCLNeNL32Hzr7nGQmbX8rOjHfVuZW2zyIgnzenMMHWzAtN5vqq7R9ZVPP3roLFD5XSFyigHchIqu2Cg
+    - type: rouge
+      value: 12.2033
+      name: ROUGE-L
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiOTM3YTY2YWY5M2VhM2MyNWZhOGZlNTZlMjk5Y2MzMGViYTAyOGJjODZkZTBhMjZjOWViYTI4Y2RkMmEwZTQxNCIsInZlcnNpb24iOjF9.i3wgF36CvXF3rVGQHiR7bpkQ4zB7huuOn8yNnj-elmOkDmp7Mmw1UfGCX_1x99mBrnMHWdCJ57rCCYr2XbWrAw
+    - type: rouge
+      value: 12.4127
+      name: ROUGE-LSUM
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiODg2MDUxZGU3MThjNzUxY2FiYjE3NTk5ZTdkNTYzMmFmNGVmZGU0NDQwOWQzOWNiZDE5YmViNDZlMzA4OWI2ZCIsInZlcnNpb24iOjF9.VJsGd6PO5iy5p5bE2QS81UXhxocsEnRNswbPcWdMDO9yQ4rU7v0QlucI53bQ7MPGpDThMCfyjpvnu682rQDGDg
+    - type: loss
+      value: 4.575754165649414
+      name: loss
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiMmY5NTc1MGY3MmFkNWMyZDlmNTZhOWYyYWRhNGM0MWJkYmVjZGZiODAzYmZmMDk3MjViMDNjYjFlYmJlZDhiYSIsInZlcnNpb24iOjF9.0Tc8MQAwiII5CcQTtb7MO-vZX_KXiBuKy30c4qG5MeRgcLmKMYZcG-zb2MgHr-kthgsHAasDciWOPhzMxMNzDg
+    - type: gen_len
+      value: 39.2258
+      name: gen_len
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiMGM1NTgzMjJlYjMxZjhmM2E1NjIwMDI4YTJkNzI5YjNlMWNiOTQxYTMxNzg3Zjk4YjBiOGU3MGMxNWJkNzUwZSIsInZlcnNpb24iOjF9.xFEROlFxxfmkQDBXQOaCOXApaVoarWTQYTVw8pB8CCRuKSRWljDWuPARSLX79Mv0k3VtHhWNRneW4PakeVyPCA
 ---
 
 # rut5-base-summ