docs: add LeRobot and SO-101 getting-started guide

[jiwenc-nv]

New multi-page section under docs/source/getting_started/lerobot/ for the end-to-end SO-101 pipeline on Isaac Teleop, LeRobot, and Isaac Lab:

• index: overview, end-to-end workflow, and teleop/policy figures
• devices: the XR controller and SO-101 Leader teleop devices
• data_collection_real: record LeRobot datasets on hardware with either device, via the isaac_teleop_to_so101 example
• data_collection_sim: record in Isaac Lab with the XR controller (the SO-101 Leader and LeRobot export are work-in-progress)
• training_groot: GR00T N1.7 training (work-in-progress)

Also wires the landing page into the Getting Started toctree and adds a so101-leader-plugin ref label in device/joint_space.rst. Builds clean under sphinx-build -W.

Description

Fixes #(issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Testing

Checklist

• I have read and understood the contribution guidelines
• I have run the linter and formatter with SKIP=check-copyright-year pre-commit run --all-files
• I have made corresponding changes to the documentation
• I have added tests that prove my fix/feature works (or explained why not)
• I have signed off all my commits (git commit -s) per the DCO

Summary by CodeRabbit

• New Features

  • Added new getting-started documentation for SO-101, covering supported teleoperation devices, real-robot data collection, simulation data collection, and model training.
  • Introduced an overview page that links the full SO-101 workflow from teleoperation through dataset creation and policy training.
  • Added navigation links and reference anchors to make the new guides easier to find and cross-reference.

• Documentation

  • Expanded setup, recording, and workflow instructions, including prerequisites, controls, and notes on current limitations and work-in-progress guidance.

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📝 Walkthrough

Walkthrough

A new getting_started/lerobot/ documentation section is added to the Isaac Teleop docs, covering the end-to-end SO-101 workflow with LeRobot. New pages describe supported teleop devices (XR controller and SO-101 leader arm), data collection in simulation (Isaac Lab tasks, XR controller workflow, HDF5 output), data collection on real hardware (XR and SO-101 leader workflows, recording controls, Hub push), and a stub GR00T N1.7 training page. The main index.rst toctree is updated to include the new section. A cross-reference anchor is added to the existing joint_space.rst page.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: a new LeRobot and SO-101 getting-started docs guide.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[jiwenc-nv]

/preview-docs

[github-actions]

✅ Preview deployed: https://NVIDIA.github.io/IsaacTeleop/preview/pr-718/