Add documentation about resolutions
Would be nice to add a section to the README with information about how resolution is handled. E.g.:
- If laptop is 1920x1080 and TV is 1920x1080, how will it work (logically pixels should be screencasted as is since resolution matches, but looking at #352 I am not sure)
- If laptop is 1920x1080 and TV is 3840x2160, how will it work (probably pixels will be upscaled somehow, and it looks like there are ways to avoid upscale - #12 (closed), so if possible would be nice to add such instructions as well)
Please note that this issue is only about documenting existing behaviour and not proposing changing the source code. Thanks for the great tool!