Added start of last text block

[sindreij]

The start of the last text block in references was missing, I added it.

r? @steveklabnik

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @steveklabnik (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. The way Github handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see CONTRIBUTING.md for more information.

[dpetersen]

@sindreij apparently we had the same Saturday plans, since this is the second time today I've made a documentation fix locally and then found out that you'd already made a PR for it! 👍

[steveklabnik]

@bors: r+ rollup

[bors]

📌 Commit 7a2ac0c has been approved by steveklabnik