Librarian Bot: Update dataset YAML metadata for model

This is a pull request to add a dataset, [`shaina/covid19`](https://huggingface.co/datasets/shaina/covid19), to the metadata for your model (defined in the `YAML` block of your model's `README.md`).
The pull request was made by [librarian-bot](https://huggingface.co/librarian-bot) and used a combination of rules and/or machine learning to suggest this additional metadata.
If this suggestion is incorrect, feel free to close this pull request.

Librarian Bot was made by [@davanstrien](https://huggingface.co/davanstrien); feel free to get in touch with feedback.

README.md

@@ -1,10 +1,9 @@
 ---
 language: en
+license: apache-2.0
 tags:
 - MPNet
-
-license: apache-2.0
-
+datasets: shaina/covid19
 dataset:
 - covid-19
 ---