Add XML docs to ReadEnvelopeReceiverQueryHandler ctor

Added XML documentation comments to the constructor of the ReadEnvelopeReceiverQueryHandler class, including parameter descriptions for envelopeReceiver, rcvRepo, and mapper. The summary section is currently empty.

EnvelopeGenerator.Application/EnvelopeReceivers/Queries/ReadEnvelopeReceiverQuery.cs

@@ -97,6 +97,12 @@ public static class Extensions
         private readonly IRepository<Receiver> _rcvRepo;
         private readonly IMapper _mapper;
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="envelopeReceiver"></param>
+        /// <param name="rcvRepo"></param>
+        /// <param name="mapper"></param>
         public ReadEnvelopeReceiverQueryHandler(IRepository<EnvelopeReceiver> envelopeReceiver, IRepository<Receiver> rcvRepo, IMapper mapper)
         {
             _repo = envelopeReceiver;