Check out this short Markdown Guide.
Check out the styleguide. You will find different examples with comments there. Alternatively browse the topics that have already been integrated here.
Depending on how you want to work on your mardown files there are different options. Online options are straightforward to use, offline options provide more features:
Just login at https://writemd.rz.tuhh.de/ and create a new note. Paste all of the above into a document and work on it. If the TUHH instance of HedgeDoc is not available, you get the same service at Just visit https://demo.hedgedoc.org/ .
Offline: VSCodium (MIT license) / VSCode (Microsoft)
Download VSCodium and install the Mathpix Markdown extension.
Render your document with
Alternatively, go to VSCode and install the Markdown+Math extension. VSCode works the same as VSCodium but with Microsoft's branding. See here.
As for VSCodium, render your document with
See here for learning how to install extensions from the marketplace.