docs(readme): improved header

[cloudflare-workers-and-pages[bot]]

Deploying enclosed with    Cloudflare Pages

Latest commit:	8c07004
Status:	✅  Deploy successful!
Preview URL:	https://ce56fd27.enclosed.pages.dev
Branch Preview URL:	https://readme-header.enclosed.pages.dev

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[cloudflare-workers-and-pages[bot]]

Deploying enclosed-docs with    Cloudflare Pages

Latest commit:	8c07004
Status:	✅  Deploy successful!
Preview URL:	https://bd3ed85e.enclosed-docs.pages.dev
Branch Preview URL:	https://readme-header.enclosed-docs.pages.dev

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud