Update app.py

app.py

@@ -46,7 +46,7 @@ def get_file_path(question: str) -> str:
 
 def get_ref_content(path: str) -> str | object:
     """Retrieves content from the reference path provided."""
-    if path.startswith('http:'):
+    if path.startswith('http'):
         file = requests.get(path).content
     else:
         with open(path, "rb") as f: