The article talks about how to establish to start your services and the necessary things for that, but it does not give the user the tools or keys so you offer the general idea but do not give solutions.
I was hoping that you would talk about how a person marketed his experiences, wished his skills and other fundamentals, not teaching the basics of setting up a site and others because it would not be useful unless you learn to manage risks and improve inputs, especially as you talk about them as an income source.
There is no formula for success. Marketing "ideas" are pointless if you don't have the proper experience to execute them. If you follow each of the steps I provided, you can start making your business more concrete and reach a larger audience. You can advertise your services on bitcointalk and other crypto platforms with the same portfolio and easy way to be contacted.
Everyone wants the easy way out, but you need to grind and work hard. Not many people follow this rule.