Add pipeline tag and library name to metadata

This PR improves the model card's metadata by adding `library_name: transformers` and `pipeline_tag: feature-extraction`. This will enable the automatic code snippet/widget on the model page and make it easier for users to discover the model under the correct category on the Hub.

README.md

@@ -1,13 +1,13 @@
-
 ---
+language:
+- vi
 license:
 - bsd-3-clause-clear
 - other
 license_name: qualcomm-responsible-ai-license
-license_link: >-
-  https://www.qualcomm.com/site/responsible-ai-license
-language:
-- vi
+license_link: https://www.qualcomm.com/site/responsible-ai-license
+library_name: transformers
+pipeline_tag: feature-extraction
 ---
 
 # BamiBERT: A New BERT-based Language Model for Vietnamese