Explain how to add a local image to the about.html

[wrtsprt]

We should explain how to do this.

[oana-sipos]

Maybe. Maybe not. I personally liked that we had to google a lot, among which was adding a picture - this way, they learn that:

• 1) they do not have to memorize things
• 2) learn they can and should search for stuff they want to make
• 3) learn how to search

So yes, having everything ready-written is an option, but maybe removes some fun & learning.