Librarian Bot: Add base_model information to model

This pull request aims to enrich the metadata of your model by adding [`gpt2`](https://huggingface.co./gpt2) 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](https://huggingface.co./librarian-bot). If you have any feedback, queries, or need assistance, please don't hesitate to reach out to [@davanstrien](https://huggingface.co./davanstrien).

If you want to automatically add `base_model` metadata to more of your modes you can use the [Librarian Bot](https://huggingface.co./librarian-bot) [Metadata Request Service](https://huggingface.co./spaces/librarian-bots/metadata_request_service)!

README.md

@@ -1,20 +1,21 @@
 ---
-license: mit
 language:
 - it
+license: mit
 tags:
 - generated_from_keras_callback
 - text_generator
+widget:
+- text: un azzurro metallico
+- text: il sole alto
+- text: una barca a vela
+- text: mare calmo
+- text: all'improvviso
+- text: un incontro inaspettato
+base_model: gpt2
 model-index:
 - name: italian-literature-model-mini
   results: []
-widget:
-- text: "un azzurro metallico"
-- text: "il sole alto"
-- text: "una barca a vela"
-- text: "mare calmo"
-- text: "all'improvviso"
-- text: "un incontro inaspettato"
 ---
 
 <!-- This model card has been generated automatically according to the information Keras had access to. You should