Update Cms-Kit/Comments.md

docs/en/Modules/Cms-Kit/Comments.md

@@ -19,6 +19,10 @@ Configure<CmsKitCommentOptions>(options =>
 {
     options.EntityTypes.Add(new CommentEntityTypeDefinition("Product"));
     options.IsRecaptchaEnabled = true; //false by default
+    options.AllowedExternalUrls = new List<string>
+    {
+      "https://abp.io/"
+    }
 });
 ```
 
@@ -28,6 +32,7 @@ Configure<CmsKitCommentOptions>(options =>
 
 - `EntityTypes`: List of defined entity types(`CmsKitCommentOptions`) in the comment system.
 - `IsRecaptchaEnabled`: This flag enables or disables the reCaptcha for the comment system. You can set it as **true** if you want to use reCaptcha in your comment system.
+- `AllowedExternalUrls`: Indicates the allowed external URLs, which can be included in a comment. These external URLs are only taken into consideration if the external URLs are not allowed in a comment widget.
 
 `CommentEntityTypeDefinition` properties:
 
@@ -42,11 +47,12 @@ The comment system provides a commenting [widget](../../UI/AspNetCore/Widgets.md
 {
   entityType = "Product",
   entityId = "...",
-  referralLinks  = new [] {"nofollow"}
+  referralLinks  = new [] {"nofollow"},
+  allowExternalUrls = false //default: "true"
 })
 ```
 
-`entityType` was explained in the previous section. `entityId` should be the unique id of the product, in this example. If you have a Product entity, you can use its Id here. `referralLinks` is an optional parameter. You can use this parameter to add values (such as "nofollow", "noreferrer", or any other values) to the [rel attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel) of links.
+`entityType` was explained in the previous section. `entityId` should be the unique id of the product, in this example. If you have a Product entity, you can use its Id here. `referralLinks` is an optional parameter. You can use this parameter to add values (such as "nofollow", "noreferrer", or any other values) to the [rel attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel) of links. `allowExternalUrls` is also an optional parameter and by default, external URLs are allowed. You can use this parameter to specify the allowed external URLs (and disallow other external URLs) by configuring the `CmsKitCommentOptions` as mentioned in the previous section.
 
 ## User Interface