Add Docker for Robotics wiki entry (#203)

Adds a comprehensive guide on using Docker and Docker Compose for robotics. The entry covers container management, Dockerfile setup (including ROS 2 integration), GUI support, and multi-architecture builds.

- Converted headers to match project hierarchy standards
- Added appropriate language tags to all code blocks
- Resolved navigation conflicts and updated the sidebar
- Updated the tools index page with the new article

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Co-authored-by: Nevin Valsaraj <nevin.valsaraj32@gmail.com>

Author: Bhaswanth-A

_data/navigation.yml

@@ -416,6 +416,8 @@ wiki:
         url: /wiki/tools/xarm-ros-guide/
       - title: ROS2 Humble Intra-Process Communication Recorder
         url: /wiki/tools/ros2-humble-ipc-recorder/
+      - title: Docker for Robotics
+        url: /wiki/tools/docker-for-robotics/
   - title: Datasets
     url: /wiki/datasets/
     children: