add reference and change example text

app.py

@@ -5,10 +5,12 @@ st.sidebar.title(DASHBOARD_TITLE)
 
 # add an explanation of what is NER and why it is important for medical tasks
 st.sidebar.markdown(
-    """
+    f"""
     Named Entity Recognition (NER) is a subtask of information extraction that locates and classifies named entities mentioned in unstructured text into pre-defined categories such as the names of persons, organizations, locations, expressions of times, quantities, monetary values, percentages, etc. 
 
     In the medical domain, NER can be used to extract entities such as symptoms, diseases, treatments, and more. This can be useful for various tasks such as clinical decision support, medical coding, and more.
+
+    Model used: [{MODEL_PATH}]({MODEL_LINK})
     """
 )
 

config.py

@@ -5,3 +5,4 @@ from annotated_text import annotated_text
 
 DASHBOARD_TITLE = "Medical NER Dashboard"
 MODEL_PATH = "Clinical-AI-Apollo/Medical-NER"
+MODEL_LINK = "https://huggingface.co/Clinical-AI-Apollo/Medical-NER"