Add checks plugin to the list of plugins

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Id2b2c97e2b3b0e4b538162e20a0c00f2d1b054d9
diff --git a/Documentation/config-plugins.txt b/Documentation/config-plugins.txt
index 3a80910..81c9927 100644
--- a/Documentation/config-plugins.txt
+++ b/Documentation/config-plugins.txt
@@ -234,6 +234,17 @@
 link:https://gerrit.googlesource.com/plugins/changemessage/+doc/master/src/main/resources/Documentation/config.md[
 Configuration]
 
+[[checks]]
+=== checks
+
+The checks plugin provides a REST API and UI extensions for integrating
+CI systems with Gerrit.
+
+link:https://gerrit-review.googlesource.com/admin/repos/plugins/checks[
+Project] |
+link:https://gerrit.googlesource.com/plugins/checks/+doc/master/src/main/resources/Documentation/about.md[
+Plugin Documentation]]
+
 [[egit]]
 === egit