Notebooks for Community Scripts-5

[ParagEkbote]

What does this PR do?

I've added 4 notebooks for the community scripts and are linked to the ReadMe as per advice given in #9905.

Please let me know if any further corrections are needed and I will make the necessary changes.

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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Who can review?

cc: @stevhliu , @sayakpaul

[stevhliu]

Cool, thanks!