How to add a language tag to model/datasets

I have several datasets and models which belong to Sinhala language category. How could I manually add language tag to them so that when someone filters by the tag “si”, my models/datasets appear? One of my datasets is NLPC-UOM/Sinhala-News-Category-classification · Datasets at Hugging Face. (It seems like the tag gets randomly assigned for wrong languages as well (eg.-classla/janes_tag · Datasets at Hugging Face))

You can add it to your model card and dataset card.

Thank you for pointing out.