Update description regarding interaction limits

Author: alexcnichols

README.md

@@ -2,7 +2,7 @@
 
 In this repository, you can find the [official GitHub public product roadmap](https://github.com/github/roadmap/projects/1). Our product roadmap is where you can learn about what features we're working on, what stage they're in, and when we expect to bring them to you. Have any questions or comments about items on the roadmap? Join the discussion over on the [GitHub Community Forum](https://github.community/) or share your feedback via the [Share feedback](https://support.github.com/contact/feedback) page. 
 
-The roadmap is currently in a read-only state, with locked conversations, as we get started. However, we anticipate being able to engage more in discussions about the future of GitHub products and features, here on GitHub, soon. If you have feedback about this roadmap repository itself, such as how the issues are presented, let us know through this [Share feedback](https://support.github.com/contact/feedback?category=other&subject=GitHub+public+roadmap) page.
+The roadmap repository is for communicating GitHub’s roadmap. Existing issues are currently read-only, and we are locking conversations, as we get started. Interaction limits are also in place to ensure issues originate from GitHub. We’re planning to iterate on the format of the roadmap itself, and we see potential to engage more in discussions about the future of GitHub products and features. If you have feedback about this roadmap repository itself, such as how the issues are presented, let us know through this [Share feedback](https://support.github.com/contact/feedback?category=other&subject=GitHub+public+roadmap) page.
 
 ## Guide to the roadmap