Update wait-for-migration notes. (#283)

RELEASENOTES.md

@@ -1,9 +1,9 @@
-- Add `wait-for-migration` command. By default it waits for all ongoing migrations to finish and reports the number of in progress and queued migrations. If an optional `migration-id` is provided, it will return as soon as that migration is complete.
+- Add `wait-for-migration` command. It waits for the provided migration and returns as soon as it is complete.
 - Add `--wait` option to `migrate-repo` command. If set to `true` (default is `false`) it will synchronously wait for the migration to finish, otherwise it will just queue up a repo migration and return the `migration-id`.
 - Support parallel migrations with `generate-script` for both `ado2gh` and `gh gei`. `generate-script` now by default generates a script to perform migrations in parallel. Adding `--sequential` flag will force migrations to perform in a sequential (one by one) fashion.
 - Deprecate `--ssh` flag in `generate-script` and `migrate-repo` commands for both `ado2gh` and `gh gei`.
 - Add powershell shebang command for execution of script on unix based systems.
 - Add executable bit on generated scripts in unix based systems.
 - Updates most commands to be idempotent. They will check if there is anything to do, and if not they will print a message to that effect and complete successfully. E.g. create-team will check if the team already exists and if so exit as success (compared to previously where it would crash). The following commands have been updated:
   - configure-autolink
-  - create-team
+  - create-team