docs: Add incremental replication example

[flexponsive]

adds a new docs page with an example of incremental replication based on a time field; closes #1372

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📚 Documentation preview 📚: https://meltano-sdk--1390.org.readthedocs.build/en/1390/

[codecov]

Codecov Report

Merging #1390 (efbb219) into main (92dd45a) will not change coverage.
The diff coverage is n/a.

❗ Current head efbb219 differs from pull request most recent head cd2bcc1. Consider uploading reports for the commit cd2bcc1 to get more accurate results

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[davegot12]

Thank you @flexponsive for this PR, I was the original poster on Slack for this documentation and you beat me to it :)

I left two comments with suggestion that could add a bit more depth to the docs, feel free to take them into account or not.

[tayloramurphy]

@aaronsteers @edgarrmondragon can you give this a review when you're able to?

Thanks @flexponsive for the PR!

[edgarrmondragon]

Thank you @flexponsive for the PR, and @davegot12 for your suggestions!

[flexponsive]

Thank you for the feedback and improvements!