To do list app

[Karnankita04]

1. User can add new task.
2. user can delete the task.
3. user can update the task.

[Karnankita04]

@Nitya-Pasrija please assign this issue to me :)

[Namya13Jain]

@Karnankita04 assigned this issue to you

[Karnankita04]

@Namya13Jain thankyou :)