Add pipeline tag and library name

This PR adds the `pipeline_tag` and `library_name` to the model card metadata to improve discoverability and clarity. The `pipeline_tag` is set to `TEXT_CLASSIFICATION` as this is a binary classifier for text data. The `library_name` is set to `fasttext` as this model uses the fastText library.

README.md

@@ -1,6 +1,9 @@
 ---
 license: mit
+pipeline_tag: TEXT_CLASSIFICATION
+library_name: fasttext
 ---
+
 <p align="center">
     📑 <a href="https://arxiv.org/abs/2503.00808" target="_blank">Paper</a> &nbsp&nbsp | &nbsp&nbsp 🔨 <a href="https://huggingface.co/hkust-nlp/preselect-fasttext-classifier" target="_blank">fastText Classifier</a> &nbsp&nbsp | &nbsp&nbsp 🤗 <a href="https://huggingface.co/datasets/hkust-nlp/PreSelect-100B" target="_blank">Released Dataset</a> &nbsp&nbsp | &nbsp&nbsp 📦 <a href="https://github.com/hkust-nlp/PreSelect" target="_blank">Repo</a>  
 <br>
@@ -57,4 +60,4 @@ If you find this work helpful, please kindly cite as:
       year={2025},
       eprint={2503.00808},
 }
-```
+```