Update README.md to display all possible keydescriptions entering present mode

[torwag]

This adds a little top row line to the sway bar entering the present mode, which guides the user through the different available options. Same like it is done for the sway system mode. Helps users, which might not remember the key shortcuts.

[Ferdi265]

Hi! Thanks for your interest in this project!

Different users of sway have very different opinions on how they prefer their modes to be named or be displayed in the bar. The config snippet in the README is intentionally simple, and I also personally don't like this kind of style of mode naming.

Therefore, I will not be merging this PR.

[torwag]

Hi,
I understand your point. I just thought it might be easier, particular for people who use wl-mirror seldom enough, to forget the key bindings. It is kind of embarrassing to stay in front of an audience and frantically trying to share or adjust the screen.
The naming could also be adapted to your style, for sure. I just copied what was standard from the system's menu. Maybe an out-commented version as an option would be a solution.
Nevertheless, it works well for me and I just wanted to share it, in case others might find it useful.

[Ferdi265]

Maybe an out-commented version as an option would be a solution.

That I can definitely do. Having an alternative for users that want that kind of style is a good idea.