The problem

I recently opened a paste that was marked markdown, like this one.
When clicking on save paste button, I found it cool that it downloaded a file automatically with the pastes id as name. But the extension was .txt.

The solution

For regular plaintext pastes the above makes sense, but since the paste format was Markdown, and is also being displayed as markdown, maybe it'd be more intuitive and seamless if the download is also with extension .md ?