[Documentation] Create subpage for each source

[badmonster0]

Similar to targets - #1101

make a page for each source https://github.com/cocoindex-io/cocoindex/tree/main/docs/docs/sources

built-in-source
Local File
Amazon S3
Azure Blob
Google Drive
Postgres

the content on each page must be copied from sections in https://github.com/cocoindex-io/cocoindex/blob/main/docs/docs/sources/index.md
without any change.

Please attach a screenshot for the PR.

Star the repo if you like it!

[esther-anierobi]

I would to work on this, please assign to me

[samar-raj10]

Hi, I’d like to work on this issue. Could you please assign it to me? Thanks!

[aryasoni98]

@badmonster0 I’m happy to work on this! Could you please assign the issue to me?

[georgeh0]

Assigned to @esther-anierobi, the first in the queue.

[esther-anierobi]

Thank you @badmonster0 . I’m on it now.