459 update nvidia flare 2.0 example (#460)

* update nvidia flare 2.0 example

Signed-off-by: Yiheng Wang <vennw@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* enhance code format

Signed-off-by: Yiheng Wang <vennw@nvidia.com>

* update folder and readme

Signed-off-by: Yiheng Wang <vennw@nvidia.com>

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: yiheng-wang-nv