Those "builds" are the ways you can create your charecter, based in many different subjects, like race, class,(like mage or archer, for example), and even based in other characters from other games (for example, "how to be Kratos the god of war"). With this, you will change the perks and the play style to fit the "build" you are following.
With this explanation, you are now ready to follow the first build of the blog: The orc warchief!
This is one of the most badass builds i ever used, it fits well the warrior/berserker play style, as you gonna be using two handed weapons and heavy armor.
So, check it out:
It takes a reasonable amount of time to make builds like those, so see what fits your play style before spending your time on them.