feat: add built-with-outstatic to docs

[avitorio]

Bug

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• Related issues linked using fixes #number
• Integration tests added
• Documentation added

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Name	Status	Preview	Updated (UTC)
outstatic-advanced-blog	✅ Ready (Inspect)	Visit Preview	Mar 22, 2024 6:58pm
outstatic-dev-blog	🔄 Building (Inspect)	Visit Preview	Mar 22, 2024 6:58pm
outstatic-docs	❌ Failed (Inspect)		Mar 22, 2024 6:58pm