Add Github link and remove irrelevant widget

This PR adds a link to the Github repository, enabling people to find the code easier.

This PR also removes the now irrelevant `widget` section from the YAML metadata, cleaning up the model card.

README.md

@@ -1,12 +1,10 @@
 ---
+base_model: google-bert/bert-base-multilingual-uncased
 library_name: transformers
+license: apache-2.0
 tags:
 - autotrain
 - text-classification
-base_model: google-bert/bert-base-multilingual-uncased
-widget:
-- text: I love AutoTrain
-license: apache-2.0
 ---
 
 # 📚 Institutional Books Topic Classifier
@@ -17,6 +15,8 @@ We used this text classifier to assign a topic, derived from the first level of
 
 Complete experimental setup and results are available in our [technical report](https://arxiv.org/abs/2506.08300) (Section 4.5).
 
+Code: https://github.com/instdin/institutional-books-1-pipeline
+
 ## Base model
 [google-bert/bert-base-multilingual-uncased](https://huggingface.co/google-bert/bert-base-multilingual-uncased)
 
@@ -90,7 +90,7 @@ General Note: Example of a general note
 """
 
 pipe = pipeline("text-classification", model="instdin/institutional-books-topic-classifier-bert")
-result = pile(to_label.strip())
+result = pipe(to_label.strip())
 print(result[0]) # {'label': 'SCIENCE', 'score': 0.9996894598007202}
 ```