try catch and logging in hub

NoteHub.cs

@@ -26,6 +26,8 @@ namespace BinaryDad.Notes
         }
 
         public async Task SaveNote(string content, string noteName)
+        {
+            try
             {
                 logger.LogInformation($"Saving note \"{noteName}\"");
 
@@ -41,6 +43,13 @@ namespace BinaryDad.Notes
                 await Clients
                     .Clients(clientConnections)
                     .SendAsync("updateNote", content);
+
+                logger.LogInformation($"NOTE \"{noteName}\" SAVED! Updated {clientConnections.Count} other client(s).");
+            }
+            catch (Exception ex)
+            {
+                logger.LogError($"Unable to save note \"{noteName}\" => {ex}");
+            }
         }
     }
 }