Update README.md

README.md

@@ -5,6 +5,6 @@ Addon for CS-Cart to integrate with OptiPic.io (automatic images optimization an
 1. [Register](https://optipic.io/ru/register/) your account on OptiPic.io site.
 1. Add your site on OptiPic [Control Panel](https://optipic.io/ru/cdn/cp/).
 1. Get your site **ID** from OptiPic Control Panel sites list.
-1. [Download](https://github.com/optipic-io/cs-cart/releases/download/v1.0/optipic-cs-cart.zip) and install this addon to your CS-Cart.
+1. [Download](https://github.com/optipic-io/cs-cart/releases/download/v1.0/optipic-cs-cart.zip) and [install](https://docs.cs-cart.com/latest/user_guide/addons/1manage_addons.html) this addon to your CS-Cart.
 1. Save your site **ID** to the addon settings.
 1. Activate auto-replace image URLs on the addon settings.