This is how you can insert a link to another post on the site into the text.

How to turn an idea into a startup?
Evgeny Kiryanov
How to turn an idea into a startup?

I want to present my product to the general public - this is a startup planner. Let's divide the story into two parts: first - what is a planner; second - how we sell it and why we don't…

Open material

This block is convenient because you can use the built-in search and literally in a couple of clicks see if there is anything relevant on the site. 

And this divider will help visually separate one block of text from another.