ultralytics 8.0.198 MLflow fix, tests and Docs page (#5357)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_integrations.py

@@ -0,0 +1,26 @@
+# Ultralytics YOLO 🚀, AGPL-3.0 license
+
+import pytest
+
+from ultralytics import YOLO
+from ultralytics.utils import SETTINGS, checks
+
+
+@pytest.mark.skipif(not checks.check_requirements('ray', install=False), reason='RayTune not installed')
+def test_model_ray_tune():
+    """Tune YOLO model with Ray optimization library."""
+    YOLO('yolov8n-cls.yaml').tune(use_ray=True,
+                                  data='imagenet10',
+                                  grace_period=1,
+                                  iterations=1,
+                                  imgsz=32,
+                                  epochs=1,
+                                  plots=False,
+                                  device='cpu')
+
+
+@pytest.mark.skipif(not checks.check_requirements('mlflow', install=False), reason='MLflow not installed')
+def test_mlflow():
+    """Test training with MLflow tracking enabled."""
+    SETTINGS['mlflow'] = True
+    YOLO('yolov8n-cls.yaml').train(data='imagenet10', imgsz=32, epochs=3, plots=False, device='cpu')