Docs updates for HUB, YOLOv4, YOLOv7, NAS (#3174)

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

docs/reference/yolo/v8/pose/predict.md

@@ -1,5 +1,6 @@
 ---
 description: Predict human pose coordinates and confidence scores using YOLOv5. Use on real-time video streams or static images.
+keywords: Ultralytics, YOLO, v8, documentation, PosePredictor, pose prediction, pose estimation, predict method
 ---
 
 # PosePredictor
@@ -10,4 +11,4 @@ description: Predict human pose coordinates and confidence scores using YOLOv5.
 # predict
 ---
 :::ultralytics.yolo.v8.pose.predict.predict
-<br><br>
+<br><br>

docs/reference/yolo/v8/pose/train.md

@@ -1,5 +1,6 @@
 ---
 description: Boost posture detection using PoseTrainer and train models using train() API. Learn PoseLoss for ultra-fast and accurate pose detection with Ultralytics YOLO.
+keywords: PoseTrainer, human pose models, deep learning, computer vision, Ultralytics YOLO, v8
 ---
 
 # PoseTrainer
@@ -10,4 +11,4 @@ description: Boost posture detection using PoseTrainer and train models using tr
 # train
 ---
 :::ultralytics.yolo.v8.pose.train.train
-<br><br>
+<br><br>

docs/reference/yolo/v8/pose/val.md

@@ -1,5 +1,6 @@
 ---
 description: Ensure proper human poses in images with YOLOv8 Pose Validation, part of the Ultralytics YOLO v8 suite.
+keywords: PoseValidator, Ultralytics YOLO, object detection, pose analysis, validation
 ---
 
 # PoseValidator
@@ -10,4 +11,4 @@ description: Ensure proper human poses in images with YOLOv8 Pose Validation, pa
 # val
 ---
 :::ultralytics.yolo.v8.pose.val.val
-<br><br>
+<br><br>