Update migration guide

CHANGELOG.md

@@ -9,13 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `BaseConversationMemory.prompt_driver` for use with autopruning. 
 - Parameter `meta: dict` on `BaseEvent`.
 
-### Changed
-- **BREAKING**: Drivers, Loaders, and Engines will now raises exceptions rather than returning `ErrorArtifact`s.
-
 ### Fixed
 - Parsing streaming response with some OpenAi compatible services.
 
-**Note**: This release includes breaking changes. Please refer to the [Migration Guide](MIGRATION.md#0.31.0) for details.
+**Note**: This release includes breaking changes. Please refer to the [Migration Guide](./MIGRATION.md#030x-to-031x) for details.
 
 ## [0.30.1] - 2024-08-21
 

MIGRATION.md

@@ -2,4 +2,23 @@
 
 This document provides instructions for migrating your codebase to accommodate breaking changes introduced in new versions of Griptape.
 
-## 0.30.X -> 0.31.X
+## 0.30.X to 0.31.X
+
+### Exceptions Over `ErrorArtifact`s
+
+Drivers, Loaders, and Engines will now raises exceptions rather than returning `ErrorArtifact`s.
+Update any logic that expects `ErrorArtifact` to handle exceptions instead.
+
+```python
+# Before
+artifacts = WebLoader().load("https://www.griptape.ai")
+
+if isinstance(artifacts, ErrorArtifact):
+    raise Exception(artifacts.value)
+
+# After
+try:
+    artifacts = WebLoader().load("https://www.griptape.ai")
+except Exception as e:
+    raise e
+```