Update docs/migration/v8-to-v9.md

Co-authored-by: Francesco Gringl-Novy <[email protected]>

Author: Luca Forstner

docs/migration/v8-to-v9.md

@@ -180,7 +180,7 @@ Sentry.init({
 ```
 
 - The `DEFAULT_USER_INCLUDES` constant has been removed.
-- The `getCurrentHub()`, `Hub` and `getCurrentHubShim()` APIs have been removed. They were on compatibility life support since the release of v9 and have now been fully removed from the SDK.
+- The `getCurrentHub()`, `Hub` and `getCurrentHubShim()` APIs have been removed. They were on compatibility life support since the release of v8 and have now been fully removed from the SDK.
 
 ### `@sentry/browser`