Hi, I’m new here and I want to ask you something. I really care about health so I want best warm up, I train with SS and have met with this article:
Is it good for SS or maybe it’s too heavy for beginner?
It’s not a matter of too heavy for a beginner. Just not enough small plates.
Mobility work, bar, half the weight start set.
Or, do as above.
Don’t complicate a warm up.
Thanks for the answer, I’ll do it your way 
From the Starting Strength book, 2nd edition:
Light warmup sets, done first with the empty bar and then progressively heavier until the work sets are loaded, serve to prepare the movement pattern itself […]
As a general rule, it is best to start with an empty bar (45 lbs.), determine the work set or sets, and then divide the difference between them into increments. […]
Most people will need to select three to five warmup sets, depending on the work set weight[…]
The book includes a diagram with examples. The sample bench warm-up is:
45 pounds 2 sets of 5
85 1x5
125 1x3
155 1x2
work sets 175 3x5
So basically, Rippetoe’s advice is to warm-up using “ramping”, though he doesn’t specifically use the term, and he doesn’t seem to advocate a warm-up that uses a weight heavier than the work set (as suggested in the article).
Like JFG said, warm-ups don’t need to be/should not be complicated.
Understood! 
Too bad I can’t buy SS book in my country 