Make users.txt example consistent

Author: crd

book/09-git-and-other-scms/sections/import-svn.asc

@@ -28,7 +28,7 @@ $ svn log --xml | grep author | sort -u | \
 
 That generates the log output in XML format, then keeps only the lines with author information, discards duplicates, strips out the XML tags.
 (Obviously this only works on a machine with `grep`, `sort`, and `perl` installed.)
-Then, redirect that output into your users.txt file so you can add the equivalent Git user data next to each entry.
+Then, redirect that output into your `users.txt` file so you can add the equivalent Git user data next to each entry.
 
 You can provide this file to `git svn` to help it map the author data more accurately.
 You can also tell `git svn` not to include the metadata that Subversion normally imports, by passing `--no-metadata` to the `clone` or `init` command.