Librarian Bot: Add base_model information to model

This pull request aims to enrich the metadata of your model by adding [`cointegrated/rut5-small-chitchat2`](https://huggingface.co/cointegrated/rut5-small-chitchat2) 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). Your input is invaluable to us!

README.md

@@ -1,13 +1,14 @@
 ---
+language:
+- ru
+library_name: transformers
 tags:
 - generated_from_trainer
 widget:
 - text: Привет! Как у тебя дела?
   example_title: Example_1
-language:
-- ru
-library_name: transformers
 pipeline_tag: text2text-generation
+base_model: cointegrated/rut5-small-chitchat2
 ---