Thank you for the info!
Now, since I am a real newbie .... the pizza was ... bad ... very bad (al but the topping though)
So I did everything like the recipe stated but I used 'bread yeast' since I didn't got anything else ... .
Ok, the pizza tasted like bread ... I really didn't like it

Beside that the crust was light brown, but with a darker brown inside it.
I really like my pizza's Italian style, very flat, but this one had this dark brown break-alike inside.
Maybe I had to make the pizza even more flat? (it was about 3mm thickness)
My oven is a 'regular' hot air oven, 200°C max (it has a special pizza button, but when I clicked it, all electricity in our house went down

)
So at this moment I am really disappointed, but I guess there are enough specialists here to get me on the right track?

I guess my major mistake was to use 'bread yeast'?
Could somebody please advise me what yeast I need to use?
The second mistake was the thickness of the pizza ... guess I just need to make it more flat.
But what about the recipe I am using, is this the right way to go?
Could somebody give me a 'basic starter recipe', and instead of regular flour I will use einkorn.
I am using the following guide btw:
http://breadmakingblog.breadexperience.com/2012/04/einkorn-and-olive-oil-pizza-dough.html)