Semantics of markdown files: Declare title as H1

It would be nice if the title of a document would be a heading element of first order (# Title).

When viewing the markdown file in an external editor the title is written as standard text and appears small. Semanticaly it is the headline of a document. When pressing the H-Button in Joplin for adding a header, it will create a heading element of second order. It would be semantically corrcet to declare the Title as a H1.

What has to be changed:

Joplin should prepend a # to the title in the Markdown source
It should not show the # in the title field of the user interface.