Hello world program in Flask

[dvs-chandana]

Aim:
Adding code for "Hello world" program using flask

• DCP21

[dvs-chandana]

@ashutoshkrris could you assign me this issue?

[ashutoshkrris]

Hey @chandu6111
Currently, we are not accepting PRs on this repository.
You can contribute to https://github.com/Learn-Write-Repeat/Open-contributions

[dvs-chandana]

Okay fine @ashutoshkrris