Added comments

CSharp/Libraries/UniversalEditor.Core/IO/EndOfStreamException.cs

@@ -5,6 +5,9 @@ using System.Text;
 
 namespace UniversalEditor.IO
 {
+    /// <summary>
+    /// The exception that is thrown when reading is attempted past the end of a stream.
+    /// </summary>
     public class EndOfStreamException : Exception
     {
     }