Add expected JSON response on successful execution of endpoints for FLINT Example

[padmajabhol]

The instructions mentioned in the curl.md file of the FLINT example do not indicate the expected response on success.
The API can be made more user friendly by providing this information.

[baimamboukar]

Hello @padmajabhol ! Can I work on this ?

[Freeman-kuch]

Hi i would love to work on this!

[Caleno-R]

Hi @padmajabhol, can I work on this issue?

[Freeman-kuch]

@Namyalg @padmajabhol I Just Raised a PR

[Kengnelisa]

Hi, I would like to work on this

[Namyalg]

Hi @Kengnelisa, @Freeman-kuch has raised a PR for this.
I suggest looking for another issue!

[Kengnelisa]

Okay thank you