Add: doc page for the object detection task (#20925)

* Added Object Detection task guide (new branch)

* Polished code examples after running make style

* Update docs/source/en/tasks/object_detection.mdx

Rephrasing suggestion from Sayak
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx

A rephrasing suggestion from Sayak
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx

typo
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Applied reviewers suggestions
>
>
Co-authored-by: sayakpaul <spsayakpaul@gmail.com>
Co-authored-by: sgugger <sylvain.gugger@gmail.com>

* polished code examples

* Added a visualization of the inference result. Slightly changed hyperparameters, and updated the results.

* polished code examples

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* Update docs/source/en/tasks/object_detection.mdx
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* Applying Steven's review suggestions
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* minor punctuation fix
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

docs/source/en/_toctree.yml

@@ -73,6 +73,8 @@
       title: Image classification
     - local: tasks/semantic_segmentation
       title: Semantic segmentation
+    - local: tasks/object_detection
+      title: Object detection
     title: Computer Vision
   - sections:
     - local: performance