Librarian Bot: Add base_model information to model

This pull request aims to enrich the metadata of your model by adding [`DeepPavlov/rubert-base-cased`](https://huggingface.co/DeepPavlov/rubert-base-cased) 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

@@ -1,4 +1,6 @@
 ---
+language:
+- ru
 tags:
 - generated_from_trainer
 metrics:
@@ -6,17 +8,15 @@ metrics:
 - recall
 - f1
 - accuracy
-model-index:
-- name: rubert-base-cased-token
-  results: []
 widget:
-- text: >-
-    Однажды я посетил прекрасный городок в горах. На его улицах росли
-    удивительные цветы.
+- text: Однажды я посетил прекрасный городок в горах. На его улицах росли удивительные
+    цветы.
   example_title: Example_1
-language:
-- ru
 pipeline_tag: token-classification
+base_model: DeepPavlov/rubert-base-cased
+model-index:
+- name: rubert-base-cased-token
+  results: []
 ---
 
 <!-- This model card has been generated automatically according to the information the Trainer had access to. You