I would say marketing, and describing what is actually happening or problem you are solving (along with features), security concerns and how you handle them, an

I would say marketing, and describing what is actually happening or problem you are solving (along with features), security concerns and how you handle them, and what happens after you publish (meaning examples). Check dribbble for "landing" pages, or just view some common technology examples like https://consul.io/ https://consul.io/