README.md in pivotal-github-1.0.10 vs README.md in pivotal-github-1.0.11

@@ -113,10 +113,10 @@
 
 `git story-pull-request` opens the proper remote URL to issue a pull request for the current branch (OS X–only):
 
     $ git story-pull-request
 
-`git story-pull-request` issues a `git push-branch` as well (from [git-utils](https://github.com/mhartl/git-utils)), just in case the local branch hasn't yet been pushed up to the remote repository. For reference, it then makes a commit containing a message with links to all the delivered story ids. These ids are determined relative to a base branch; this is `master` by default, but if there have been a series of topic branches then the base branch should be set (using the `-b` option) to the branch of the previous pull request.
+`git story-pull-request` issues a `git push-branch` as well (from [git-utils](https://github.com/mhartl/git-utils)), just in case the local branch hasn't yet been pushed up to the remote repository. For reference, it then makes a commit containing a message with links to all the delivered story ids. These ids are determined relative to a base branch; this is `master` by default, but if there have been a series of topic branches then the base branch should be set (using the `-b` option) to the branch of the previous pull request. The pull request message includes the branch used for the request, so this previous branch can be determined using `git log`.
 
 As with `git story-merge`, by default `git story-pull-request` exits with a warning if the most recent commit doesn't finish the story.
 
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