Learning how to read schematic

Hi,

Thanks, yep there is no schematic on this tutorial, i insert it just to show that some of these circuit does not make much sense to me.Like why there is a resistor to the reset pin when the atmega support 5v and the VCC is 5V ?
I start electronic by just copy-paste what other peoples are doing with time my interest grow and i like to understand it a bit deeper.
Thanks for some reason my circuit was not working with the another order ( but should have been about something else ) and it get into my head that order matter.

All the best

Vincent