Make $ non selectable in commands

[superbonaci]

All doc pages, example https://docs.darlinghq.org/contributing/generating-stubs.html
There are commands:

$ mkdir ~/bin

Either you double-click to select all line, or hit the copy floating icon, it copies the command as well the dollar symbol plus space $ (or % ).
This could be fixed making those 2 characters non-selectable for all commands.

Example URL: https://css-tricks.com/to-or-not-to-displaying-terminal-code-snippets/
Example code on that URL: brew install buttnugget (notice doesn't select $ ).
brew.sh homepage itself does this.

[CuriousTommy]

Closing as PR #56 has been merge (it's more easier to just get rid of the $)