Add documentation and guide for font

[adrianmcli]

We need to provide some information and guidance on using the proper font.

@arturbien linked me to this font hat he has been using: https://github.com/arturbien/React95/tree/beta/src/components/assets/fonts

Here is also another option: https://stackoverflow.com/questions/30683657/use-windows-95-font-on-webpage

And while it does "feel" authentic, the one big problem is that it's also quite difficult to read. Setting letter-spacing: 1px helped a lot for me but it was still not ideal. After some research, it seems that the original font might have been based on Franklin Gothic: https://www.dafont.com/forum/read/169430/microsoft-windows-95-typeface

And after searching for the Google Font most similar to Franklin Gothic, I arrived at Libre Franklin: https://fonts.google.com/specimen/Libre+Franklin which I use in my app to this day. That being said, the Wikipedia page for Microsoft fonts seem to indicate that they are similar to Arial and Helvetica: https://en.wikipedia.org/wiki/Microsoft_Sans_Serif

In either case, I decided to stick with Franklin Gothic maybe we should list all of these options out for users.