update migration documentation

Author: 05nelsonm

docs/migration.md

@@ -4,4 +4,8 @@
  - Your Application's `TorSettings` class needs to now extend
  [ApplicationDefaultTorSettings](./topl-service-base/io.matthewnelson.topl_service_base/-application-default-tor-settings/index.md)
  - Remove and re-import class paths, as all non-Builder classes were moved to the
- `topl-service-base` module
+ `topl-service-base` module
+ - The `topl-core-base` dependency is no longer required as it is automatically provided with
+ `topl-service`. If you have a `Tor` module, other module's depending on it need only
+ import the `topl-service-base` module now as all visible classes/abstractions have been moved there.
+ - The `TorServiceController.getServiceTorSettings` no longer requires context