는 법 알리다

I'll show you how

-는 법 is 'the way to do' something and 알려주다 is telling or showing someone. Every line here is a presenter's offer: 쌈 싸는 법 알려줄게요 'I'll show you how to wrap ssam', 돈 버는 법 알려드리겠습니다 'let me show you how to make money'. This is the standard how-to opening in Korean video, and the ending shifts with the audience — 알려줄게 to a friend, 알려드릴게요 to viewers.

Register: instructional, polite to viewers