[doc] Fix recipe roller bot link.

doc/users/recipes.md

 # Recipes
 
 Recipes are a domain-specific language (embedded in python) for specifying
 sequences of subprocess calls in a cross-platform and testable way.
 
 * [User guide](https://chromium.googlesource.com/external/github.com/luci/recipes-py/+/master/doc/user_guide.md)
 * Recipes: [public](https://chromium.googlesource.com/chromium/tools/build.git/+/master/scripts/slave/recipes/);
   [internal](https://chrome-internal.googlesource.com/chrome/tools/build_limited/scripts/slave/+/master/recipes/).
 * Recipe modules:
   [base library](https://chromium.googlesource.com/external/github.com/luci/recipes-py/+/master/recipe_modules/);
   [depot_tools](https://chromium.googlesource.com/chromium/tools/depot_tools/+/master/recipe_modules/);
   [public](https://chromium.googlesource.com/chromium/tools/build.git/+/master/scripts/slave/recipe_modules/);
   [internal](https://chrome-internal.googlesource.com/chrome/tools/build_limited/scripts/slave/+/master/recipe_modules/).
 
 ## Recipe Roller
 
-[Builder page (internal link)](https://uberchromegw.corp.google.com/i/internal.infra.cron/builders/recipe-roller).
+[Builder page (internal link)](https://uberchromegw.corp.google.com/i/internal.infra.cron/builders/recipe-autoroller-internal).
 
 The recipe roller is a service that ensures that the pinned dependencies between
 recipe repositories are kept up to date.  At the time of writing, the
 dependencies between repositories are as in the following diagram:
 
               recipes-py
                 /    \  \
                v      \  \
         depot_tools    )  \
                 \     /   |
@@ skipping 42 matching lines @@
 and/or an `upload` (for a dirty roll) step, which will have a CL link within its
 child steps.
 
 If we seem to be rolling a lot of CLs into a repository (say 10 or more),
 something is usually wrong.  This can be that a dirty CL was sent and hasn't
 been committed -- the author may need a ping -- or that something else is going
 wrong when trying to land the change.
 
 martiniss@chromium.org is the owner of the roller and can help find problems.
 iannucci@chromium.org also has some familiarity.