You can also map them by yourself with `<Plug>` mappings.
+### Enable TOC window auto-fit
+
+Allow for the TOC window to auto-fit when it's possible for it to shrink.
+It never increases its default size (half screen), it only shrinks.
+
+```vim
+let g:vim_markdown_toc_autofit = 1
+```
+
+### Syntax Concealing
+
+Concealing is set for some syntax.
+
+For example, conceal `[link text](link url)` as just `link text`.
+
+To enable/disable conceal use Vim's standard conceal configuration.
+
+```vim
+set conceallevel=2
+```
+
### Syntax extensions
The following options control which syntax extensions will be turned on. They are off by default.
let g:vim_markdown_math = 1
```
-#### YAML frontmatter
+#### YAML Front Matter
-Highlight YAML frontmatter as used by Jekyll:
+Highlight YAML front matter as used by Jekyll or [Hugo](https://gohugo.io/content/front-matter/).
```vim
let g:vim_markdown_frontmatter = 1
```
+#### TOML Front Matter
+
+Highlight TOML front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+
+TOML syntax highlight requires [vim-toml](https://github.com/cespare/vim-toml).
+
+```vim
+let g:vim_markdown_toml_frontmatter = 1
+```
+
+#### JSON Front Matter
+
+Highlight JSON front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+
+JSON syntax highlight requires [vim-json](https://github.com/elzr/vim-json).
+
+```vim
+let g:vim_markdown_json_frontmatter = 1
+```
## Mappings
## Commands
+The following requires `:filetype plugin on`.
+
- `:HeaderDecrease`:
Decrease level of all headers in buffer: `h2` to `h1`, `h3` to `h2`, etc.