Add 'cdns' utility to README

[junevm]

Added a new entry for 'cdns' to the Command Line Utilities section in the README.

Added cdns to the README’s Command Line Utilities list so it’s easier for users to discover and reference.

Motivation and Context

cdns is a command-line utility in this repository, but it wasn’t represented in the README’s list of command line tools. Adding it improves discoverability and helps users quickly find the project and its purpose from the main documentation.

How Has This Been Tested?

Not applicable — documentation-only change. Verified the README renders correctly on GitHub (links/formatting and section layout).

Breaking Changes

None.

Types of changes

• 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

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

This change is intended to keep the README’s utility index in sync with the repository contents and make the tool easier to discover.

Summary by Sourcery

Documentation:

• Add cdns to the README Internet command-line utilities list with a brief description and links.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the README’s Command Line Utilities section to add the missing cdns command-line tool entry under the Internet subsection, including its GitHub link, primary homepage link, and a short description consistent with existing entries.

File-Level Changes

Change	Details	Files
Add cdns entry to the Internet subsection of the Command Line Utilities list in the README.	Insert a new bullet for cdns above the existing Daily Reddit Wallpaper entry in the Internet utilities list. Include the standard open-source badge linking to the junevm/cdns GitHub repository. Link the visible cdns text to the same GitHub repository URL and provide a brief description: change DNS servers via the terminal.	README.md

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[sourcery-ai]

Hey - I've left some high level feedback:

• In the new cdns line, add a space before the hyphen in the description ([cdns](...) - change DNS...) to match the formatting of the surrounding entries.
• Consider removing the emoji at the end of the cdns description or aligning it with how other entries in this list are written to keep the style consistent.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- In the new `cdns` line, add a space before the hyphen in the description (`[cdns](...) - change DNS...`) to match the formatting of the surrounding entries.
- Consider removing the emoji at the end of the `cdns` description or aligning it with how other entries in this list are written to keep the style consistent.

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