Check for broken links (#1422)

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

ultralytics/yolo/cfg/__init__.py

@@ -20,7 +20,7 @@ CLI_HELP_MSG = \
         Where   TASK (optional) is one of [detect, segment, classify]
                 MODE (required) is one of [train, val, predict, export, track]
                 ARGS (optional) are any number of custom 'arg=value' pairs like 'imgsz=320' that override defaults.
-                    See all ARGS at https://docs.ultralytics.com/cfg or with 'yolo cfg'
+                    See all ARGS at https://docs.ultralytics.com/usage/cfg or with 'yolo cfg'
 
     1. Train a detection model for 10 epochs with an initial learning_rate of 0.01
         yolo train data=coco128.yaml model=yolov8n.pt epochs=10 lr0=0.01
@@ -42,7 +42,7 @@ CLI_HELP_MSG = \
         yolo copy-cfg
         yolo cfg
 
-    Docs: https://docs.ultralytics.com/cli
+    Docs: https://docs.ultralytics.com
     Community: https://community.ultralytics.com
     GitHub: https://github.com/ultralytics/ultralytics
     """