(Re-)write a post according to the user-defined style

Our user @mike.hostetler asked to have a way to define output style of the post. Eg.

```

{Result driven for client}.

Here's how you can do the same:

{Listicle with strategies}

{Pitch for my services}
```

Users would like to either specify their own templates or use pre-defined ones to quickly get a post created according to the defined structure