PowerShell – Update HREF – Rich Text Field

I do have a very strange requirement that i need to change the hyperlink of a item in list (like upload documents link to another library) but unfortunately I cannot edit the item as the link if formed dynamically in workflow, so to update the link I need to use PowerShell. And below is the code that will do that trick. DO NOT forget to change the URL and ITEM ID as per the requirement.

$webUrl = "http://SharePoint" $ your SharePoint Site 
$web = Get-SPWeb $webUrl
$l = $web.Lists["Task List"] # your list name
$i = $l.GetItemById(1194) # your Item ID
Add-Type -AssemblyName System.Web
$newlink = "YOUR URL to destination"
$i["Upload Documents"] = [System.Web.HttpUtility]::HtmlDecode(" Upload Documents ");  # your source column and the text for hyperlink 
$i.update()
Write-Host New Link - $i["Upload Documents"]