Update app.py

app.py

@@ -51,7 +51,7 @@ with st.expander("🎯 Purpose"):
 # ------------------------------------------------
 # Self Attention Section
 # ------------------------------------------------
-    with st.expander("🔹 Self-Attention Mechanism"):
+with st.expander("🔹 Self-Attention Mechanism"):
     st.markdown("""
     Self-Attention is a mechanism where each token in a sequence attends to **other tokens in the same sequence** to capture dependencies.