update message for summary in customers api

Api/OnlineSalesAutoCrop.CoreAPI/Controllers/IntegretionApi/IntegrationController.cs

@@ -31,6 +31,14 @@ namespace OnlineSalesAutoCrop.CoreAPI.Controllers.IntegretionApi
         private readonly ILogger _logger = logger;
         private readonly IIntegrationService _integrationService = integrationService;
 
+
+        /// <summary>
+        /// Insert or Update Customers for SAP 
+        /// </summary>
+        /// <remarks>
+        /// </remarks>
+        /// <param name="request"></param>
+        /// <returns>if created return 201 or if updated return 204 true</returns>
         [HttpGet("Customers")]
         [IgnoreAntiforgeryToken]
         [ProducesResponseType(StatusCodes.Status200OK, Type = typeof(IntegrationLoginResponse))]