Update link to local build instructions

Replacing the link to the instructions for local previewing with the old template documentation, to reflect the shift to the new infrastructure

README.md

@@ -45,6 +45,6 @@ Danielle Kane (Ed.), Anna Oates (Ed.), John Wright (Ed.), Nilani Ganeshwaran (Ed
 
 ## Checking and Previewing the Lesson
 
-To check and preview a lesson locally, see [http://carpentries.github.io/lesson-example/07-checking/index.html](https://carpentries.github.io/lesson-example/07-checking/index.html).
+To check and preview a lesson locally, see [the lesson infrastructure documentation](https://carpentries.github.io/sandpaper-docs/).