Linux README: Add information about debugging with the Debian package.
Linux README: Add information about debugging with the Debian package.

OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue,OutOfOrder/ags-geminirue,OutOfOrder/ags-geminirue,humble/ags-geminirue