Improve description of RestoreWindow

Restore window currently says it sets the window state to:

   "not minimized/maximized"

However, if a window is maximized and then minimized, it's typical that
it would restore back to being maximized, which is what seems to happen
from my testing. I've reworded the description to better reflect
this behavior.

src/platforms/rcore_android.c

@@ -337,7 +337,7 @@ void MinimizeWindow(void)
     TRACELOG(LOG_WARNING, "MinimizeWindow() not available on target platform");
 }
 
-// Set window state: not minimized/maximized
+// Restore window from being minimized/maximized
 void RestoreWindow(void)
 {
     TRACELOG(LOG_WARNING, "RestoreWindow() not available on target platform");