Update docs/integrations/sources/xero-migrations.md

Co-authored-by: katmarkham <40400595+katmarkham@users.noreply.github.com>

Author: btkcodedev

docs/integrations/sources/xero-migrations.md

@@ -3,7 +3,7 @@
 ## Upgrading to 1.0.0
 
 The authentication scheme is now using `access_token` instead of Oauth 2.0, Follow the documentation - https://developer.xero.com/documentation/guides/oauth2/pkce-flow for understanding more about how to get access token.
-Steps to get access_token via postman:
+Optionally, you may get your access_token via Postman:
 - Move to Authorization tab of an empty http request and selected Oauth 2.0
 - Set use token type as `access token`
 - Set header prefix as `Bearer`