Include renaming of bazel-docker-tests into bazel-slow-tests in documentation

In commit 07a3635bd2543f5ab49941087a9a7f2362f6340e the bazel-docker-tests were
renamed to bazel-slow-tests. Update bazel-monitoring.md accordingly.

Change-Id: Ic93f4fb6c132af16fc859f63423b552e402ccf09
diff --git a/docs/bazel-monitoring.md b/docs/bazel-monitoring.md
index 9921319..2a00bc1 100644
--- a/docs/bazel-monitoring.md
+++ b/docs/bazel-monitoring.md
@@ -14,7 +14,7 @@
 *   Bazel's own jobs (owned by the core Bazel team):
 
     -   [bazel-tests](http://ci.bazel.io/job/bazel-tests)
-    -   [bazel-docker-tests](http://ci.bazel.io/job/bazel-docker-tests)
+    -   [bazel-slow-tests](http://ci.bazel.io/job/bazel-slow-tests)
     -   [Tutorial](http://ci.bazel.io/job/Tutorial)
     -   [benchmark](http://ci.bazel.io/job/benchmark)
     -   [nightly](http://ci.bazel.io/job/bazel/job/nightly)