Librarian Bot: Add base_model information to model

This pull request aims to enrich the metadata of your model by adding the `t5-small` as a `base_model` field, situated in the `YAML` block of your model's `README.md`.

How did we find this information? We performed a regular expression match on your `README.md` file to determine the connection.

**Why add this?** Enhancing your model's metadata in this way:
- **Boosts Discoverability** - It becomes straightforward to trace the relationships between various models on the Hugging Face Hub.
- **Highlights Impact** - It showcases the contributions and influences different models have within the community.

For a hands-on example of how such metadata can play a pivotal role in mapping model connections, take a look at [librarian-bots/base_model_explorer](https://huggingface.co/spaces/librarian-bots/base_model_explorer).

This PR comes courtesy of Librarian Bot. If you have any feedback, queries, or need assistance, please don't hesitate to reach out to [@davanstrien](https://huggingface.co/davanstrien). Your input is invaluable to us!

README.md

@@ -6,12 +6,13 @@ datasets:
 - billsum
 metrics:
 - rouge
+base_model: t5-small
 model-index:
 - name: my_awesome_billsum_model
   results:
   - task:
-      name: Sequence-to-sequence Language Modeling
       type: text2text-generation
+      name: Sequence-to-sequence Language Modeling
     dataset:
       name: billsum
       type: billsum
@@ -19,9 +20,9 @@ model-index:
       split: ca_test
       args: default
     metrics:
-    - name: Rouge1
-      type: rouge
+    - type: rouge
       value: 0.176
+      name: Rouge1
 ---
 
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