Add more detailed setup instructions in the README

[macintushar]

More detailed setup instructions for the DB and Sentry setup.

[MadhurSaluja]

Hey @macintushar I can start working on it right away if u can assign it to me :)

[macintushar]

Hi @MadhurSaluja, I have assigned you to this issue. Please go through the current deployment setup and let me know if you run into any issues or require any more details.

[macintushar]

@MadhurSaluja any updates on this?

[macintushar]

Hey @MadhurSaluja , any update on this?

[macintushar]

Hey @MadhurSaluja, any update on this issue?