One of the Plugins available to hosted Micro.Blogs is Custom home page, which
replaces your blog home page with text instead of recent posts.
That led to a question on the Help Forum:
Is there any way to have the modified main page and have a menu item for “Blog” that goes to posts?
The answer came from jsonbecker:
Make a custom template called layouts/blog/list.html. Then you can make a page in your custom theme by making a file named content/blog.md…
Lastly, on your main page, you can now link to /blog and that will use the template above.
For more detailed instructions and any follow-up see the Help Forum page.