Fix emoji encoding

README.md

@@ -1,21 +1,21 @@
----
-title: Medical Document Retrieval  
-emoji: ""
-colorFrom: blue
-colorTo: green
-sdk: gradio
-sdk_version: 6.0.2
-app_file: app_retrieval_cached.py
-pinned: false
----
-
-# Medical Document Retrieval System
-
-This system uses BM25 + Dense Embeddings + RRF Fusion to search across 10,000+ medical documents.
-
-**Models:**
-- BM25 Index (keyword-based)
-- Dense Embeddings (embeddinggemma-300m-medical)  
-- RRF Fusion (combines both approaches)
-
+---
+title: Medical Document Retrieval
+emoji: 
+colorFrom: blue
+colorTo: green
+sdk: gradio
+sdk_version: 6.0.2
+app_file: app_retrieval_cached.py
+pinned: false
+---
+
+# Medical Document Retrieval System
+
+This system uses BM25 + Dense Embeddings + RRF Fusion to search across 10,000+ medical documents.
+
+**Models:**
+- BM25 Index (keyword-based)
+- Dense Embeddings (embeddinggemma-300m-medical)
+- RRF Fusion (combines both approaches)
+
 **Note:** First startup takes 5-8 minutes to build indexes. Please be patient!