fix(DEVELOPER.md): fix broken cli usage link

[marmishaw14]

Bug Description

This pull request fixes a broken link in DEVELOPER.md by updating the reference to the Tux CLI Usage documentation to the correct file path.

Summary by Sourcery

Bug Fixes:

• Update Tux CLI Usage link in DEVELOPER.md to point to docs/content/dev/cli/index.md instead of the old path.

[sourcery-ai]

Reviewer's Guide

Updated the broken CLI usage link in DEVELOPER.md to point to the correct documentation path.

File-Level Changes

Change	Details	Files
Corrected broken CLI usage link reference	Replaced link path from './docs/content/dev/cli_usage.md' to './docs/content/dev/cli/index.md' Maintained the original link text and list formatting	DEVELOPER.md

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[sourcery-ai]

Hey @marmishaw14 - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[electron271]

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