Update docs metadata (#3781)

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

@@ -1,3 +1,8 @@
+---
+description: Discover how to use PosePredictor in the Ultralytics YOLO model. Includes detailed guides, code examples, and explanations.
+keywords: Ultralytics, YOLO, PosePredictor, machine learning, AI, predictive models
+---
+
 ## PosePredictor
 ---
 ### ::: ultralytics.models.yolo.pose.predict.PosePredictor
@@ -6,4 +11,4 @@
 ## predict
 ---
 ### ::: ultralytics.models.yolo.pose.predict.predict
-<br><br>
+<br><br>

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

@@ -1,3 +1,8 @@
+---
+description: Explore Ultralytics PoseTrainer for YOLO models. Get a step-by-step guide on how to train on custom pose data for more accurate AI modeling.
+keywords: Ultralytics, YOLO, PoseTrainer, pose training, AI modeling, custom data training
+---
+
 ## PoseTrainer
 ---
 ### ::: ultralytics.models.yolo.pose.train.PoseTrainer
@@ -6,4 +11,4 @@
 ## train
 ---
 ### ::: ultralytics.models.yolo.pose.train.train
-<br><br>
+<br><br>

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

@@ -1,3 +1,8 @@
+---
+description: Explore the PoseValidator—review how Ultralytics YOLO validates poses for object detection. Improve your understanding of YOLO.
+keywords: PoseValidator, Ultralytics, YOLO, Object detection, Pose validation
+---
+
 ## PoseValidator
 ---
 ### ::: ultralytics.models.yolo.pose.val.PoseValidator
@@ -6,4 +11,4 @@
 ## val
 ---
 ### ::: ultralytics.models.yolo.pose.val.val
-<br><br>
+<br><br>