Add JSON Table documentation

Vishal Takrequested to merge
vtak-master-patch-55692 into master

What does this MR do and why?

Documentation for JSON Table feature added in !86353 (merged)

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

Edited by Vishal Tak

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