#1177 Updated the Heroku Deploy docs according to the new announcement

[prokan468]

• Please make sure the below checklist is followed for Pull Requests.

• All continuous integration tests are green

• Tests are added where necessary

• Documentation is added/updated where necessary

• Coding Rules & Commit Guidelines as per our CONTRIBUTING.md document are followed

[skip ci]

[CLAassistant]

All committers have signed the CLA.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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[prokan468]

Hi, @ivanmonteiro I have made the changes. Please do review it again and let me know if there are any more changes to be made.

[nicolas63]

Looks good to me if @ivanmonteiro are ok i can merge

[ivanmonteiro]

Looks good to me if @ivanmonteiro are ok i can merge

Looks good to me

[prokan468]

Thanks @ivanmonteiro and @nicolas63 . Appreciate it! Please do merge this PR.

[prokan468]

I am not sure as to why this is failing two checks, which it wasn't earlier. @nicolas63 Do I do something from my side or would that be taken care of by you?

[nicolas63]

It's not on your side, i will rerun the pipeline

[nicolas63]

Thanks for your contribution !