URL should reflect state

[bennypowers]

This is a very helpful tool, thank you for releasing it.

I'd like to be able to send my colleagues a URL to a particular example scheme, for example

https://colorsafe.co/?background=%2330c386&font-size=18&font-family=Tahoma&color=%23002a2a

I'd like this URL to always reflect the current state of the app, so for example, if I clicked on an alternate colour in the app, the URL would change to

https://colorsafe.co/?background=%2330c386&font-size=18&font-family=Tahoma&color=%23082213

That would aid collaboration and ultimately bring more accessible UIs into the world.

Thanks for your consideration.