Add evaluation results on cnn_dailymail dataset

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

@lewtun

, using the predictions stored [here](https://huggingface.co/datasets/autoevaluate/autoeval-staging-eval-project-3aabac9e-7554869).\
Accept this pull request to see the results displayed on the [Hub leaderboard](https://huggingface.co/spaces/autoevaluate/leaderboards?dataset=cnn_dailymail).\
Evaluate your model on more datasets [here](https://huggingface.co/spaces/autoevaluate/model-evaluator?dataset=cnn_dailymail).

README.md

@@ -5,6 +5,42 @@ tags:
 license: apache-2.0
 datasets:
 - cnn_dailymail
+model-index:
+- name: flax-community/t5-base-cnn-dm
+  results:
+  - task:
+      type: summarization
+      name: Summarization
+    dataset:
+      name: cnn_dailymail
+      type: cnn_dailymail
+      config: 3.0.0
+      split: test
+    metrics:
+    - name: ROUGE-1
+      type: rouge
+      value: 24.286
+      verified: true
+    - name: ROUGE-2
+      type: rouge
+      value: 11.1355
+      verified: true
+    - name: ROUGE-L
+      type: rouge
+      value: 19.8404
+      verified: true
+    - name: ROUGE-LSUM
+      type: rouge
+      value: 22.7534
+      verified: true
+    - name: loss
+      type: loss
+      value: 2.1426050662994385
+      verified: true
+    - name: gen_len
+      type: gen_len
+      value: 18.9993
+      verified: true
 ---
 # Model
 This model is fine-tuned from https://huggingface.co/flax-community/t5-base-openwebtext, fine-tuned on cnn_dailymail.