Add Kapa to developers

[yangwao]

Kapa

• https://www.kapa.ai/
  https://twitter.com/subsquid/status/1671486108616589312?t=2k4MXoG0pDxFhexeyCm0WQ&s=35

I think it's something similiar like Gitbook has Lens for Search

https://docs.gitbook.com/product-tour/searching-your-content/lens

[poppyseedDev]

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