Reformat Markdown code blocks (#12795)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: UltralyticsAssistant <web@ultralytics.com>

docs/en/integrations/weights-biases.md

@@ -63,9 +63,9 @@ Before diving into the usage instructions for YOLOv8 model training with Weights
 
     === "Python"
        ```python
+       import wandb
        from ultralytics import YOLO
        from wandb.integration.ultralytics import add_wandb_callback
-       import wandb
 
        # Step 1: Initialize a Weights & Biases run
        wandb.init(project="ultralytics", job_type="training")