Fix visibility so it can be used by gitiles

Bug: NA
Test: NA
Change-Id: I0eb3d5e5511f64b6fd97c467a2bdea1b8f0224bc
diff --git a/BUILD b/BUILD
index febd62e..848e651 100644
--- a/BUILD
+++ b/BUILD
@@ -4,6 +4,7 @@
     resources = [
         "src/prettify/example/example.html",
     ],
+    visibility = ["//visibility:public"],
 )
 
 java_binary(