Requesting Documentation Update

[nsNeruno]

--Context of Bug/Issue--

Declaring the entry point of Secondary Display App causing White Screen to be displayed instead on secondary display after calling showSecondaryDisplay.

--Version--
1.0.0

--How I Fixed It--
Simply by moving the second app declaration on the same file as the main app entry point.

--Suggestion--
The plugin documentation must be updated to clearly state and warn that the second screen entry point MUST BE ON THE EXACT SAME FILE as the main entry point void main() block. Doing otherwise would cause the issue stated above.