ultralytics 8.0.91 tracker fix and docs comments (#2343)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Laughing <61612323+Laughing-q@users.noreply.github.com>

docs/models/sam.md

@@ -0,0 +1,36 @@
+---
+comments: true
+---
+
+# Vision Transformers
+
+Vit models currently support Python environment:
+
+```python
+from ultralytics.vit import SAM
+
+# from ultralytics.vit import MODEL_TYPe
+
+model = SAM("sam_b.pt")
+model.info()  # display model information
+model.predict(...)  # train the model
+```
+
+# Segment Anything
+
+## About
+
+## Supported Tasks
+
+| Model Type | Pre-trained Weights | Tasks Supported       |
+|------------|---------------------|-----------------------|
+| sam base   | `sam_b.pt`          | Instance Segmentation |
+| sam large  | `sam_l.pt`          | Instance Segmentation |
+
+## Supported Modes
+
+| Mode       | Supported          |
+|------------|--------------------|
+| Inference  | :heavy_check_mark: |
+| Validation | :x:                |
+| Training   | :x:                |