- add function header

GBase/GBaseEntry.cs

@@ -2,6 +2,7 @@
 // Created: 2020-01-27
 // Copyright(c) 2020 SimonG. All Rights Reserved.
 
+using System;
 using System.Threading.Tasks;
 using GBase.Interfaces;
 
@@ -20,6 +21,10 @@ namespace GBase
 
         }
 
+        /// <summary>
+        /// The <see cref="IAsyncDisposable.DisposeAsync"/> method
+        /// </summary>
+        /// <returns>A <see cref="ValueTask"/> to await</returns>
         public async ValueTask DisposeAsync()
         {