[suggestion] add a .desktop file for Linux DE

[TonyWhite]

For Linux users who use a graphical interface, can you also insert a .desktop file like this?

[Desktop Entry]
Name=sshdb
Comment=Keyboard-first SSH library and launcher TUI
Keywords=;ssh;secureshell;shell;terminal;console
TryExec=x-terminal-emulator -e sshdb
Exec=gtk-launch sshdb
Icon=computer
Type=Application
Categories=Utility;

In this example:

• x-terminal-emulator is an alias that works only for Debian and derivates.
• gtk-launch runs a command within the terminal and is more reliable.
• The icon computer is a freedesktop icon instead of a dedicated one.