Documentation: Add Jump to next difference shortcuts keybinding option, show on right click

[gitressa]

To inform that "Jump to next difference" (and previous) shortcuts exist:

• [x] Show shortcuts on right-click in "context"-menu in the comparison split-views
• [ ] Add shortcuts keybinding option

[gitressa]

I just saw in the README that next/previous difference shortcuts already exists, which is fantastic.

But to make them more easy to discover, it would be great if shortcuts keybinding option were added, and they were shown on right-click.

[kaste]

The right-click menu is the "context"-menu. We can only add this if we find a way to make it only visible when actually in the comparison split-views. I wouldn't want to add this to all views.

[gitressa]

That's a great point, let's postpone right-click for now.

[gitressa]

Thanks for adding the two shortcuts to the list of shortcuts, after right-click in the split windows.