diff --git a/book/features/pull_request_build.md b/book/features/pull_request_build.md
index ace1e87..37aaec9 100644
--- a/book/features/pull_request_build.md
+++ b/book/features/pull_request_build.md
@@ -5,7 +5,7 @@
 This section is useful for user type 3-5.
 ```
 
-When writing a TeachBook it is useful to automatically build and view these changes online. This exactly why we designed and build the [deploy-book-workflow](../external/deploy-book-workflow/README.md) tool, which also allows for multiple versions of your book to exist at any time with customizable URL's. However, it doesn't cover all use cases. Luckily, Read the Docs is a free tool that can easily be used for this purpose!
+When writing a TeachBook it is useful to automatically build and view these changes online. This exactly why we designed and build the [deploy-book-workflow](../external/deploy-book-workflow/README.md) tool, which also allows for multiple versions of your book to exist at any time with customizable URL's. However, it doesn't cover all use cases. Luckily, Read the Docs is a free tool that can easily be used for this purpose. It also provides a very easy way to view differences between versions on each page!
 
 Pull Requests are a key tool for allowing anyone with a GitHub account to make a contribution to your work by forking your repository, adding commits, then sending them back to your repository via a Pull Request. Unfortunately you are not able to automatically build the book based on proposed changes in a pull request from a fork of your repository, as this requires the deploy-book-workflow in the fork to have GitHub Actions enabled to show the proposed changes in the book. Furthermore, when proposing your contribution in a pull request, you'd have to manually refer to your own built book (e.g., with a hyperlink). This process can be made easier by using [Read the Docs](https://about.readthedocs.com/?ref=readthedocs.org), as it can automatically build a book based on changes proposed in a pull request, and includes a link to the book directly in the pull request page.