# Markdown Vim Mode
+[![Build Status](https://travis-ci.org/plasticboy/vim-markdown.svg)](https://travis-ci.org/plasticboy/vim-markdown)
+
Syntax highlighting, matching rules and mappings for [the original Markdown](http://daringfireball.net/projects/markdown/) and extensions.
## Installation
## Options
-**Disable Folding**
+### Disable Folding
-Add the following line to your `.vimrc` to disable folding.
+Add the following line to your `.vimrc` to disable folding configuration.
```vim
let g:vim_markdown_folding_disabled=1
```
-**Set Initial Foldlevel**
+This option only controls vim_markdown's folding configuration. To enable/disable folding use Vim's folding configuration.
+
+```vim
+set [no]foldenable
+```
+
+### Set Initial Foldlevel
Add the following line to your `.vimrc` to set the initial foldlevel. This option defaults to 0 (i.e. all folds are closed) and is ignored if folding is disabled.
let g:vim_markdown_initial_foldlevel=1
```
-**Disable Default Key Mappings**
+### Disable Default Key Mappings
Add the following line to your `.vimrc` to disable default key mappings. You can map them by yourself with `<Plug>` mappings.
let g:vim_markdown_no_default_key_mappings=1
```
+### Syntax extensions
+
+The following options control which syntax extensions will be turned on. They are off by default.
+
+#### LaTeX math
+
+Used as `$x^2$`, `$$x^2$$`, escapable as `\$x\$` and `\$\$x\$\$`.
+
+```vim
+let g:vim_markdown_math=1
+```
+
+#### YAML frontmatter
+
+Highlight YAML frontmatter as used by Jekyll:
+
+```vim
+let g:vim_markdown_frontmatter=1
+```
+
## Mappings
The following work on normal and visual modes: