add a link to a clean slate state

[parmentelat]

when in sandbox mode, it's possible to do a reset; clear
however when using the tool often this takes some time - to type and to execute

I would suggest to add a link from the Learn Git Branching header to go back to the main sandbox entry point and restart afresh

I actually have a possible PR to this end so if the idea feels right I can go ahead with it

[pcottle]

I'd be fine with a shortcut :) you could add an shortcut here that achieves that, maybe a broom or trash can or something:

https://fontawesome.com/icons/broom?f=classic&s=solid

[pcottle]

Speaking of which, tapping that "?" actually brings you to a screen where you can reset as well: