Allow users to check availability directly from the URL

[nzec]

Example : If someone goes to https://username-check.herokuapp.com/username. It should directly check for username's availability.

[manu-chroma]

This query string works: https://username-check.herokuapp.com/?username=<username>

But I agree we can have a more user friendly route for checking.

[nzec]

@manu-chroma That query string can be used to generate a JSON.

[manu-chroma]

@duttaditya18 I don't understand what you mean by that

[nzec]

@manu-chroma I mean we can generate a JSON for each query. Kind of like an API.

[manu-chroma]

This is what we do atm: https://github.com/manu-chroma/username-availability-checker/blob/master/frontend.py#L18

Adding https://username-check.herokuapp.com/username route should be trivial task here.