Table formatting

[ForeGuards]

I'm using your theme for my blog, and recently, I tried to insert a markdown table, but it does not look like a table; instead, it looks like standard text. It doesn't matter if I copy-paste one from a working page or if I create one from scratch.
I have upload 2 picture, where you can see how I have created the tables and how it look like

Do you have a hint on how to create tables in this theme?