Doc fix for RecordException (#5143)

Author: cijothomas

src/OpenTelemetry.Api/Trace/ActivityExtensions.cs

@@ -57,20 +57,26 @@ public static Status GetStatus(this Activity activity)
     }
 
     /// <summary>
-    /// Adds an activity event containing information from the specified exception.
+    /// Adds an <see cref="ActivityEvent"/>  containing information from the specified exception.
     /// </summary>
     /// <param name="activity">Activity instance.</param>
     /// <param name="ex">Exception to be recorded.</param>
+    /// <remarks> The exception is recorded as per <a href="https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/exceptions.md">specification</a>.
+    /// "exception.stacktrace" is represented using the value of <a href="https://learn.microsoft.com/dotnet/api/system.exception.tostring">Exception.ToString</a>.
+    /// </remarks>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static void RecordException(this Activity activity, Exception? ex)
         => RecordException(activity, ex, default);
 
     /// <summary>
-    /// Adds an activity event containing information from the specified exception and additional tags.
+    /// Adds an <see cref="ActivityEvent"/> containing information from the specified exception and additional tags.
     /// </summary>
     /// <param name="activity">Activity instance.</param>
     /// <param name="ex">Exception to be recorded.</param>
     /// <param name="tags">Additional tags to record on the event.</param>
+    /// <remarks> The exception is recorded as per <a href="https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/exceptions.md">specification</a>.
+    /// "exception.stacktrace" is represented using the value of <a href="https://learn.microsoft.com/dotnet/api/system.exception.tostring">Exception.ToString</a>.
+    /// </remarks>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static void RecordException(this Activity activity, Exception? ex, in TagList tags)
     {