.markdownlintrc

{
    "default": true,

    /*
     * MD001 - Header levels should only increment by one level at a time
     */
    "header-increment": true,

    /*
     * MD002 - First header should be a top level header
     */
    "first-header-h1": {
        "level": 1
    },

    /*
     * MD003 - Header style
     *
     * Triggered when different header styles (atx, setext, and 'closed' atx)
     * are used in the same document:
     *
     * # ATX style H1
     *
     * ## Closed ATX style H2 ##
     *
     * Setext style H1
     * ===============
     */
    "header-style": {
        // Values: "consistent", "atx", "atx_closed", "setext",
        // "setext_with_atx", "setext_with_atx_closed";
        //
        // Default: "consistent"
        "style": "atx"
    },
    /*
     * MD004 - Unordered list style
     *
     * Triggered when the symbols used in the document for unordered list
     * items do not match the configured unordered list style:
     *
     * * Item 1
     * + Item 2
     * - Item 3
     */
    "ul-style": {
        // Values: "consistent", "asterisk", "plus", "dash", "sublist";
        // Default: "consistent"
        "style": "consistent"
    },

    /*
     * MD005 - Inconsistent indentation for list items at the same level
     *
     * Triggered when list items are parsed as being at the same level, but
     * don't have the same indentation:
     *
     * * Item 1
     *     * Nested Item 1
     *     * Nested Item 2
     *    * A misaligned item
     */
    "list-indent": true,

    /*
     * MD006 - Consider starting bulleted lists at the beginning of the line
     *
     * Triggered when top level lists don't start at the beginning of a line:
     *
     * Some text
     *
     *    * List item
     *    * List item
     */
    "ul-start-left": true,

    /*
     * MD007 - Unordered list indentation
     *
     * Triggered when list items are not indented by the configured number of
     * spaces.
     */
    "ul-indent": {
        // Default: 2
        "indent": 4
    },

    /*
     * MD009 - Trailing spaces
     *
     * Triggered on any lines that end with whitespace.
     */
    "no-trailing-spaces": {
        // Allows an exception to this rule for a specific amount of trailing
        // spaces used to insert an explicit line break/br element. For
        // example, set br_spaces to 2 to allow exactly 2 spaces at the end of
        // a line.
        "br_spaces": 2,

        // Using spaces to indent blank lines inside a list item is usually
        // not necessary, but some parsers require it. Set the
        // list_item_empty_lines parameter to true to allow this.
        "list_item_empty_lines": true
    },

    /*
     * MD013 - Line length
     *
     * Triggered when there are lines that are longer than the configured line
     * length (default: 80 characters). To fix this, split the line up into
     * multiple lines.
     */
    "line-length": {
        "line_length": 400,
        "headers": 80
    },

    /*
     * MD024 - Multiple headers with the same content
     *
     * Triggered if there are multiple headers in the document that have the
     * same text.
     */

    "no-duplicate-header": true
}