Update v14 api docs with info from umbraco docs (#15977)

* update api docs

* small update

src/Umbraco.Core/Notifications/ContentCopiedNotification.cs

@@ -5,7 +5,10 @@ using Umbraco.Cms.Core.Events;
 using Umbraco.Cms.Core.Models;
 
 namespace Umbraco.Cms.Core.Notifications;
-
+/// <summary>
+/// A notification that is used to trigger the IContentService when the Copy method is called in the API.
+/// The notification is published after the content object has been copied.
+/// </summary>
 public sealed class ContentCopiedNotification : CopiedNotification<IContent>
 {
     public ContentCopiedNotification(IContent original, IContent copy, int parentId, Guid? parentKey, bool relateToOriginal, EventMessages messages)
@@ -13,6 +16,24 @@ public sealed class ContentCopiedNotification : CopiedNotification<IContent>
     {
     }
 
+    /// <summary>
+    ///  Initializes a new instance of the <see cref="ContentCopiedNotification"/>.
+    /// </summary>
+    /// <param name="original">
+    /// Gets the original <see cref="IContent"/> object.
+    /// </param>
+    /// <param name="copy">
+    /// Gets the <see cref="IContent"/> object being copied.
+    /// </param>
+    /// <param name="parentId">
+    /// Gets the ID of the parent of the <see cref="IContent"/> being copied.
+    /// </param>
+    /// <param name="relateToOriginal">
+    /// Boolean indicating whether the copy was related to the orginal.
+    /// </param>
+    /// <param name="messages">
+    /// Initializes a new instance of the <see cref="EventMessages"/>.
+    /// </param>
     [Obsolete("Please use constructor that takes a parent key as well, scheduled for removal in v15")]
     public ContentCopiedNotification(IContent original, IContent copy, int parentId, bool relateToOriginal, EventMessages messages)
         : this(original, copy, parentId, null, relateToOriginal, messages)