Five chapters. Each one can be downloaded as .md — drop it back into the editor and you have a ready-made sample document.
This manual covers what this editor actually does, not Markdown in general.
If you just want to start writing, chapter one is enough; the other four work as reference.
The editor needs no install and no account — open the editor and it runs.
Quick start From opening a folder to hitting Ctrl+S and overwriting the original file — the whole flow in five steps.
Syntax reference The syntax this editor's preview actually supports, on one page: headings, emphasis, lists, tables, code blocks, task lists.
YAML front matter That block of metadata fenced by --- at the top of a file. Here it renders as a card instead of being mangled by the parser.
Dual preview Two documents side by side: load a reference file, authorize a base folder, scroll both panes proportionally, and switch to reading mode.
Browsers and file access What the File System Access API is, why Firefox and Safari can only download, and why every reload asks for permission again.
FAQ Are files uploaded, why only Chromium can save in place, does it work on a phone, can it run offline — answered in one place.