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

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 [multi_news](https://huggingface.co/datasets/multi_news) dataset by

@Brez

, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-eval-multi_news-default-52dcdc-44771145146).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=multi_news).\
Evaluate your model on more datasets [here](https://huggingface.co/spaces/autoevaluate/model-evaluator?dataset=multi_news).

README.md

@@ -2,6 +2,48 @@
 language: en
 tags:
 - summarization
+model-index:
+- name: google/pegasus-multi_news
+  results:
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: multi_news
+      type: multi_news
+      config: default
+      split: test
+    metrics:
+    - type: rouge
+      value: 47.5861
+      name: ROUGE-1
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiODk5MjA3OWU0OTQ5OWM2MjdlZGFiNjAwNzQ4ODQ3ODUxMDg1MmVmMmZlM2I5MmZjNGFlYjIwZmZhNjE5ZDliZiIsInZlcnNpb24iOjF9.2JV0rRhAnYf7IZ5YTH9VWL1ZpKhsIowmfLvIy33vs7V3tML9TVEhIUwui6zwoyc7VnoemEp5-Y9990F5_jaIBw
+    - type: rouge
+      value: 18.7885
+      name: ROUGE-2
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNGY1MDEyMjM3N2FlZWRmMDI5ZmJkOWIwZmRiNzA5M2IxZDU4Zjk2NzI5MGI3YTUxMDkxMThmZjliOTcwYWI4MyIsInZlcnNpb24iOjF9.4EQqViSHQ9i0dGLb1-6VixCQ4PmuQZ6d7gKiJr70xNZtBt124Y4hkVz-yNTKaiJ3fOxD7XP372eH1743UfdbAw
+    - type: rouge
+      value: 24.9734
+      name: ROUGE-L
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiN2UyMGFlODNhNDM4NTVjZTM5ZWQ3YzVmYTYzODBmYjk3N2ExNTZiZGQ0YWJjZTA1NGQ3NDIyZTllY2U1OTFlNCIsInZlcnNpb24iOjF9.Ue926PfDVV2HyQ-H09fXgCFuey-mA1iKvnxEoHlvQZTvfqxq0_gWCL4bNS5DfawQGO2owMLAo_yguVhYwnoXAA
+    - type: rouge
+      value: 43.2093
+      name: ROUGE-LSUM
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiYzNiODk1ZDc5NDA0NDY0NjdiNzM3YTc5N2ZhM2FjZDY4NWQ5ZDUzMTNlMzA3YWVhMGIzMDExMmI4MTRkMjFiNiIsInZlcnNpb24iOjF9.rb1KNGXrJLBiV7CPMuc3YkYP6UyoZ9m7oxiHPFqZZ7hKGMW_6KFO0mpXeGAbX6OI_oVo6oNh1RwseQrOum4yAA
+    - type: loss
+      value: 2.3634445667266846
+      name: loss
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiNDk0OGRiMzk2ZDhlYjYzYjUyNTI3MzcwMzZiZWVjYzFlN2QwYTI2ZjM3NzM3NzY2ZDUxYTVlMjZhMTFlZDk1ZCIsInZlcnNpb24iOjF9.avci5v52cAP5kppL3mb2TTV59hhPgYo3TJtCyyKbDVTKmDHxZoNzTGUoswHzew8oTicEvHegsbcn5tyeP73cBA
+    - type: gen_len
+      value: 223.0068
+      name: gen_len
+      verified: true
+      verifyToken: eyJhbGciOiJFZERTQSIsInR5cCI6IkpXVCJ9.eyJoYXNoIjoiZDk5M2VmZGJkYjc2MmRjNDFhNzg3NTU0ZTFjNzM2NDQzNGI2NjliMzdjMTBhMTNmMTA3NWY1NDQyZTI2MmQxMyIsInZlcnNpb24iOjF9.Cj_cJRmr-tj_-BWl0ij0qGfRTUtqMhlmFydW3C76rJfN1IQAFUsXB_LW7YYHbZwC8pAPuWfXjiYo6N4LFFH0Aw
 ---
 
 ### Pegasus Models