.net error handling

docs/sdks/dotnet/GETTING_STARTED.md

@@ -28,6 +28,21 @@ static async Task Main(string[] args)
 }
 ```
 
+### Error Handling
+The Appwrite .NET SDK raises `AppwriteException` object with `message`, `code` and `response` properties. You can handle any errors by catching `AppwriteException` and present the `message` to the user or handle it yourself based on the provided error information. Below is an example.
+
+```csharp
+var users = Users(client);
+
+try {
+  var request = await users.create('email@example.com', 'password', 'name');
+  var response = await request.Content.ReadAsStringAsync();
+  Console.WriteLine(response);
+} catch (AppwriteException e) {
+  Console.WriteLine(e.Message);
+}
+```
+
 ### Learn more
 You can use followng resources to learn more and get help
 - 🚀 [Getting Started Tutorial](https://appwrite.io/docs/getting-started-for-server)