Update prediction Results docs (#4139)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ultralytics/utils/files.py

@@ -40,9 +40,11 @@ def spaces_in_path(path):
     Yields:
         (Path): Temporary path with spaces replaced by underscores if spaces were present, otherwise the original path.
 
-    Examples:
+    Example:
+        ```python
         with spaces_in_path('/path/with spaces') as new_path:
             # your code here
+        ```
     """
 
     # If path has spaces, replace them with underscores