A custom type file to help generate markdown

Markdown.types.ps1xml

<?xml version="1.0" encoding="utf-8" ?>
<Types>
    <Type>
        <Name>System.String</Name>
        <Members>
            <ScriptMethod>
                <Name>MarkdownStrong</Name>
                <Script>
                    [OutputType([System.String])]
                    param()
                    "**{0}**" -f $this
                </Script>
            </ScriptMethod>                               
            <ScriptMethod>
                <Name>MarkdownEm</Name>
                <Script>
                    [OutputType([System.String])]
                    param()
                    "_{0}_" -f $this
                </Script>
            </ScriptMethod>      
            <ScriptMethod>
                <Name>MarkdownHeader</Name>
                <Script>
                    [OutputType([System.String])]
                    param([ValidateRange(1,6)][int]$Level = 1)
                    "`n`r" + ("#" * $Level) + ' ' + $this + "`n`r" 
                </Script>
            </ScriptMethod>         
            <ScriptMethod>
                <Name>MarkdownQuote</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    $this | foreach { " $(' ' * $Level * 2) > $($_.ToString())" }
                </Script>
            </ScriptMethod>               
            <ScriptMethod>
                <Name>MarkdownLink</Name>
                <Script>
                    [OutputType([System.String])]
                    param([string]$Uri)
                    "[$this]($Uri)"
                </Script>
            </ScriptMethod>
            <ScriptMethod>
                <Name>MarkdownCodeBlock</Name>
                <Script>
                    [OutputType([System.String])]
                    param([string]$Language)
                    "``````$Language"
                    $this.ToString()
                    '```'
                </Script>
            </ScriptMethod>          
            <ScriptMethod>
                <Name>MarkdownUL</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    " $(' ' * $Level * 2) * $this"
                </Script>
            </ScriptMethod>         
            <ScriptMethod>
                <Name>MarkdownOL</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    " $(' ' * $Level * 2) 1. $this"
                </Script>
            </ScriptMethod>                                                     
        </Members>
    </Type>
    <Type>
        <Name>System.Management.Automation.ScriptBlock</Name>
        <Members>
            <ScriptMethod>
                <Name>MarkdownCodeBlock</Name>
                <Script>
                    [OutputType([System.String])]
                    param()
                    '```powershell'
                    $this.ToString()
                    '```'
                </Script>
            </ScriptMethod>         
        </Members>
    </Type>
    <Type>
        <Name>System.Array</Name>
        <Members>
            <ScriptMethod>
                <Name>MarkdownUL</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    $this | foreach { " $(' ' * $Level * 2) * $($_.ToString())" }
                </Script>
            </ScriptMethod>         
            <ScriptMethod>
                <Name>MarkdownOL</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    $this | foreach { " $(' ' * $Level * 2) 1. $($_.ToString())" }
                </Script>
            </ScriptMethod>
            <ScriptMethod>
                <Name>MarkdownQuote</Name>
                <Script>
                    [OutputType([System.String])]
                    param([int]$Level = 0)
                    $this | foreach { " $(' ' * $Level * 2) > $($_.ToString())" }
                </Script>
            </ScriptMethod>                                  
        </Members>
    </Type>    
</Types>