Added sections for basic and advanced examples

[michaelwdombek]

As mentioned in discord I've added sub-sections to the example sections to indicate how "complex" the example is.

basic examples:

• scripts with easy to understand code or templates

advanced examples:

• complex scripts that use lots of tools or are have more complex workflows

I did not change the directory structure since some of the Youtube videos directly link to them :/.

[Biancamazzi]

thanks @michaelwdombek!!