refactor(docs): update documentation structure

Simplified the documentation by removing redundant sections and
replacing them with direct links to component documentation.
Updated submodule references to point to the latest commits,
ensuring the documentation reflects the current state of the
project. This change aims to streamline the user experience
and improve maintainability.

docs/index.rst

@@ -5,114 +5,8 @@ A software development kit for the control and simulation of the DexRobot dexter
 
 .. toctree::
    :maxdepth: 2
-   :caption: Contents
+   :caption: Component Documentation Links
 
-.. toctree::
-   :maxdepth: 2
-   :caption: Component Documentation
-
-   components/pyzlg_dexhand/index
-   components/dexrobot_urdf/index
-   components/ros_compat/index
-
-Getting Started
-----------------
-
-1. Make sure you have Git LFS installed::
-
-    sudo apt install git-lfs      # For Ubuntu, for example
-    git lfs install
-
-2. Clone the repository::
-
-    git clone --recursive https://gitee.com/DexRobot/dexrobot_python_sdk.git
-
-.. note::
-   Make sure you have the ``--recursive`` flag turned on, so that all the submodules can be loaded. Alternatively, you can clone the submodules you need individually.
-
-Project Components
--------------------
-
-pyzlg_dexhand
-~~~~~~~~~~~~~~
-Low-level hardware interface and control library for the DexHand robotic system.
-
-* Hardware communication via USB-CAN interface
-* Protocol implementation for hand control
-* ROS integration examples
-* Visualization tools
-* Comprehensive testing suite
-
-dexrobot_kinematics
-~~~~~~~~~~~~~~~~~~~
-Kinematics library for robotic hand systems.
-
-* Forward and inverse kinematics for hand configurations
-* Support for both left and right hand variants
-* Utilities for transformation and visualization
-* Type-safe implementation with comprehensive testing
-
-dexrobot_isaac
-~~~~~~~~~~~~~~
-Isaac Sim integration and simulation environment.
-
-* Complex scene creation and simulation
-* Integration with OpenAI Gym-style environments
-* Support for various manipulation tasks
-* Reinforcement learning infrastructure
-* Pre-built assets and environments:
-    * Robotic hand models
-    * Furniture and object models
-    * Scene compositions
-    * Training configurations
-
-dexrobot_urdf
-~~~~~~~~~~~~~~
-URDF (Unified Robot Description Format) models and utilities.
-
-* Complete URDF descriptions for DexHand
-* Mesh files for visualization and collision
-* Utilities for URDF manipulation and analysis
-* Both detailed and simplified hand models
-* CAD exports in STEP format
-
-dexrobot_mujoco
-~~~~~~~~~~~~~~~~
-MuJoCo simulation environment and utilities.
-
-* MuJoCo XML models for the DexHand
-* Scene creation tools
-* Real-time visualization
-* Physics-based simulation
-* Integration with ROS
-* Rich set of demo environments and furniture models
-
-ros_compat
-~~~~~~~~~~~
-ROS compatibility layer for platform-independent development.
-
-* Abstract interface for ROS functionality
-* Logging utilities
-* Time handling
-* Node implementation
-
-Installation
--------------
-
-Please refer to the guides in the individual submodules.
-
-Dependencies
--------------
-
-* Python 3.6+
-* ROS (optional, for ROS integration)
-* MuJoCo (for physics simulation)
-* Isaac Sim (for advanced simulation)
-* USB-CAN adapter (for hardware control)
-
-Indices and tables
-================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`
+   DexHand Control <https://dexrobot.github.io/pyzlg_dexhand/index.html>
+   URDF Models <https://dexrobot.github.io/dexrobot_urdf/index.html>
+   MuJoCo Simulation <https://dexrobot.github.io/dexrobot_mujoco/index.html>