Update app.py

app.py

@@ -112,7 +112,7 @@ def find_disease_list(query: SymptomQuery):
     for i in range(len(symptoms_list)):
         for j in range(len(symptoms_list[i])):
             if symptoms_list[i][j] not in unique_symptoms_list:
-                unique_symptoms_list.append(symptoms_list[i][j])
+                unique_symptoms_list.append(symptoms_list[i][j].lower())
     return {"disease_list": disease_list, "unique_symptoms_list": unique_symptoms_list}
 
 class SelectedSymptomsQuery(BaseModel):