Update docs metadata (#3781)

docs/reference/models/rtdetr/model.md

@@ -1,4 +1,9 @@
+---
+description: Explore the specifics of using the RTDETR model in Ultralytics. Detailed documentation layered with explanations and examples.
+keywords: Ultralytics, RTDETR model, Ultralytics models, object detection, Ultralytics documentation
+---
+
 ## RTDETR
 ---
 ### ::: ultralytics.models.rtdetr.model.RTDETR
-<br><br>
+<br><br>

docs/reference/models/rtdetr/predict.md

@@ -1,4 +1,9 @@
+---
+description: Learn how to use the RTDETRPredictor model of the Ultralytics package. Detailed documentation, usage instructions, and advice.
+keywords: Ultralytics, RTDETRPredictor, model documentation, guide, real-time object detection
+---
+
 ## RTDETRPredictor
 ---
 ### ::: ultralytics.models.rtdetr.predict.RTDETRPredictor
-<br><br>
+<br><br>

docs/reference/models/rtdetr/train.md

@@ -1,3 +1,8 @@
+---
+description: Get insights into RTDETRTrainer, a crucial component of Ultralytics for effective model training. Explore detailed documentation at Ultralytics.
+keywords: Ultralytics, RTDETRTrainer, model training, Ultralytics models, PyTorch models, neural networks, machine learning, deep learning
+---
+
 ## RTDETRTrainer
 ---
 ### ::: ultralytics.models.rtdetr.train.RTDETRTrainer
@@ -6,4 +11,4 @@
 ## train
 ---
 ### ::: ultralytics.models.rtdetr.train.train
-<br><br>
+<br><br>

docs/reference/models/rtdetr/val.md

@@ -1,3 +1,8 @@
+---
+description: Explore RTDETRDataset in Ultralytics Models. Learn about the RTDETRValidator function, understand its usage in real-time object detection.
+keywords: Ultralytics, RTDETRDataset, RTDETRValidator, real-time object detection, models documentation
+---
+
 ## RTDETRDataset
 ---
 ### ::: ultralytics.models.rtdetr.val.RTDETRDataset
@@ -6,4 +11,4 @@
 ## RTDETRValidator
 ---
 ### ::: ultralytics.models.rtdetr.val.RTDETRValidator
-<br><br>
+<br><br>