[Doc] Refine the README for FinanceAgent

[joshuayao]

Priority

P0

OS type

Ubuntu

Hardware type

Xeon-GNR

Running nodes

Single Node

Description

Please read the guidelines in #1673.

[MSCetin37]

This issue is will be addressed as pat of the #1956

[joshuayao]

This issue is will be addressed as pat of the #1956

@MSCetin37 Thanks. OPEA README guideline

[MSCetin37]

addressed here 1996