Update README for OpenAI Agents SDK Integration (#1001)

* some updates

* ai rewrite

* formatting

* remove div

* readme updates

* wip

* wip

* wip

* wip

* wip

* wip

* fix merge issues

* typos

* clarify

* Revert core change

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Co-authored-by: Tim Conley <[email protected]>

Author: jssmith