[Docs] Improve Documentation for GDB-UI

[naman9271]

Description

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Current Behavior

Describe the existing problems with the documentation, such as missing sections, unclear instructions, outdated content, or formatting issues.

Expected Behavior

Describe how the documentation should be improved, including necessary formatting changes, additional sections, or improved explanations.

Steps to Fix

1. Identify unclear or missing content.
2. Improve formatting, clarity, and completeness.
3. Ensure technical accuracy of code snippets and instructions.
4. Submit a pull request with the fixes.

Related Issues

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Additional Context

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Note: Ensure that the updated documentation follows the project's contribution guidelines and maintains a professional standard.

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[naman9271]

hey @Shubh942 please have a look i have updated the documentation and add new sections also that's help in the ease of new contributors . Letme know if there will be need of some more changes.