Reformat Markdown code blocks (#12795)

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

docs/en/datasets/detect/african-wildlife.md

@@ -42,10 +42,10 @@ To train a YOLOv8n model on the African wildlife dataset for 100 epochs with an
         from ultralytics import YOLO
 
         # Load a model
-        model = YOLO('yolov8n.pt')  # load a pretrained model (recommended for training)
+        model = YOLO("yolov8n.pt")  # load a pretrained model (recommended for training)
 
         # Train the model
-        results = model.train(data='african-wildlife.yaml', epochs=100, imgsz=640)
+        results = model.train(data="african-wildlife.yaml", epochs=100, imgsz=640)
         ```
 
     === "CLI"
@@ -63,7 +63,7 @@ To train a YOLOv8n model on the African wildlife dataset for 100 epochs with an
         from ultralytics import YOLO
 
         # Load a model
-        model = YOLO('path/to/best.pt')  # load a brain-tumor fine-tuned model
+        model = YOLO("path/to/best.pt")  # load a brain-tumor fine-tuned model
 
         # Inference using the model
         results = model.predict("https://ultralytics.com/assets/african-wildlife-sample.jpg")