As a site visitor, I want to see a favicon

[shaunagm]

A favicon - a tiny icon for the url bar - would be great! We can use a shrunk down picture of the penguin for now, either the one where it's scribbling notes, from the site, or a generic OpenHatch one. Whichever looks best to you!

Here's a How To.

[IamAdiSri]

@shaunagm I added the generic OpenHatch penguin, as it had better visibility on both light and dark tabs, while the scribbling penguin was barely visible on light tabs, and even on dark tabs appears really small.