Hello
Welcome to Markdown Notebook! Markdown Notebook is a blogging solution that renders Markdown documents client-side, in Javascript. Unfortunately, you don't appear to have Javascript enabled, and Markdown Notebook doesn't actually have any server-side code, which makes things a bit difficult.
If you don't want to turn on Javascript, take note of the filename after the "#" in your URL bar above, and find that file in this Github repository, where you will be able to read it as formatted by Github. You can also browse that repository for interesting posts, or just clone it and look at it in your terminal if you prefer your Markdown unrendered.