message: docs(appflow): add note on historical commits to bitbucket start
diff: @@ -23,3 +23,5 @@ Then you can choose the repository to link from the list of available repos.
  When you link the repository a webhook will be created for the repository
  and events will be sent to Appflow so that we have access to any commits you
  push to your repository.
  +
  +Only new commits will be shown. Historical commits prior to establishing a connection with BitBucket will not be displayed.
  