Add evaluation results on the samsum config of samsum

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Your model has been evaluated on the samsum config of the [samsum](https://huggingface.co/datasets/samsum) dataset by

@pszemraj

, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-staging-eval-project-samsum-db063b78-12135617).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=samsum).\
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README.md

@@ -217,6 +217,39 @@ model-index:
       type: gen_len
       value: 63.4493
       verified: true
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: samsum
+      type: samsum
+      config: samsum
+      split: test
+    metrics:
+    - name: ROUGE-1
+      type: rouge
+      value: 26.8026
+      verified: true
+    - name: ROUGE-2
+      type: rouge
+      value: 6.0656
+      verified: true
+    - name: ROUGE-L
+      type: rouge
+      value: 20.0098
+      verified: true
+    - name: ROUGE-LSUM
+      type: rouge
+      value: 21.9115
+      verified: true
+    - name: loss
+      type: loss
+      value: 2.317471981048584
+      verified: true
+    - name: gen_len
+      type: gen_len
+      value: 19.1111
+      verified: true
 ---
   
 # README - long-t5-tglobal-base-16384-booksum-V11-big_patent-V2