fix in routing

pyserve/routing.py

@@ -123,6 +123,10 @@ class RequestHandler:
             file_path = root / index_file
         else:
             file_path = root / path
+            # If path is a directory, look for index file
+            if file_path.is_dir():
+                index_file = config.get("index_file", "index.html")
+                file_path = file_path / index_file
 
         try:
             file_path = file_path.resolve()