docs: Update/add persona diagram in docs (#5692)

* docs: Add persona diagram to README.md

* docs: Add persona diagram to README.md

Signed-off-by: yan/RedHat AI team <[email protected]>

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Signed-off-by: yan/RedHat AI team <[email protected]>

Author: yannnz

docs/README.md

@@ -52,6 +52,11 @@ Feast helps ML platform/MLOps teams with DevOps experience productionize real-ti
 
 * *For AI Engineers*: Feast provides a platform designed to scale your AI applications by enabling seamless integration of richer data and facilitating fine-tuning. With Feast, you can optimize the performance of your AI models while ensuring a scalable and efficient data pipeline.
 
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+![](assets/feast_persona_diagram.png)
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 ## What Feast is not?
 
 ### Feast is not