Add Klinky to Analytics and Attribution

[wilgott]

Description

Adds Klinky to the Analytics and Attribution section.

Klinky is an A/B testing link shortener: one short link splits traffic between two destinations at configurable weights, with real-time click analytics and a REST API for programmatic link management. Developer marketing teams can use it to test landing pages, docs variants, or campaign destinations from a single distributed link (e.g. in READMEs, newsletters, or conference QR codes) and measure which destination performs better. Free tier available.

Type of change

• Add a new resource
• Update an existing resource
• Fix formatting/typos
• Improve categorization

Checklist

• I have read contributing.md.
• My change is specifically relevant to developer marketing.
• I used the format [Name](URL) - Description. for list entries.
• I checked for duplicate entries.
• Descriptions are concise, objective, and end with a period.
• I verified links are valid and not broken.
• I used canonical HTTPS URLs without shorteners or tracking parameters.
• I disclosed any affiliation with the added/updated resource.
• This pull request contains a single logical change.

Additional context

Affiliation disclosure: I am the founder of Klinky.

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