Scrolling through your article I disagree, it's high quality content. What converts it to "low quality" is the bait-n-switch title. This is not "everything you need to know" -- this is "how to get started from scratch".

Metaphor would be "Everything you need to know about fixing cars" and the article shows you how to check the engine light, change oil, rotate tires, and replace spark plugs. There's just no way to make a promise that large and have your article be considered high quality.