Add java-prettify to Zuul

It is used by Gitiles.

Change-Id: I84bc3f9ff13e96397c88f28a62b8f3c359295bcc
diff --git a/checkers.yaml b/checkers.yaml
index d07308a..82d4f1f 100644
--- a/checkers.yaml
+++ b/checkers.yaml
@@ -320,6 +320,11 @@
 
 # Other projects.
 
+  - uuid: "zuul-check:java-prettify"
+    repository: "java-prettify"
+    name: "Zuul Check Pipeline"
+    description: "Run Zuul jobs on new patchsets"
+
   - uuid: "zuul-check:git-repo"
     repository: "git-repo"
     name: "Zuul Check Pipeline"
diff --git a/zuul/main.yaml b/zuul/main.yaml
index 17d479d..ff8803e 100644
--- a/zuul/main.yaml
+++ b/zuul/main.yaml
@@ -32,6 +32,7 @@
           - polymer-bridges
           # All of the rest of the projects, alphabetically sorted.
           - git-repo
+          - java-prettify
           - plugins/admin-console
           - plugins/autosubmitter
           - plugins/avatars-external