Run pre-commit and remove unnecessary blank lines in documentation files

Author: eugene123tw

docs/source/index.md

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 ## Python API Reference

docs/source/python/descriptions/detection_model.md

@@ -10,7 +10,6 @@ Detection model aims to detect objects in an image. The model outputs a list of
 
 A single input image of shape (H, W, 3) where H and W are the height and width of the image, respectively.
 
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 ### Outputs
 
 Detection model outputs a list of detection objects (i.e `list[Detection]`) wrapped in `DetectionResult`, each object containing the following attributes:
@@ -40,4 +39,4 @@ for pred_obj in predictions.objects:
     pred_score = pred_obj.score
     label_id = pred_obj.id
     bbox = [pred_obj.xmin, pred_obj.ymin, pred_obj.xmax, pred_obj.ymax]
-```
+```

docs/source/python/descriptions/index.md

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docs/source/python/descriptions/instance_segmentation.md

@@ -23,7 +23,6 @@ Instance segmentation model outputs a list of segmented objects (i.e `list[Segme
 - `xmax` (int) - X-coordinate of the bottom-right corner of the bounding box.
 - `ymax` (int) - Y-coordinate of the bottom-right corner of the bounding box.
 
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 ## Example
 
 ```python