Fix the documentation to show valid JSON.

Comma after the end of the last element in a map is not valid JSON.

Change-Id: I4f09710aa3719c2176106b7f61558bf3ca8eaf71

Documentation/rest-api-plugins.txt

diff --git a/Documentation/rest-api-plugins.txt b/Documentation/rest-api-plugins.txt
index e9e0a1c..c51a551 100644
--- a/Documentation/rest-api-plugins.txt
+++ b/Documentation/rest-api-plugins.txt
@@ -47,7 +47,7 @@
       "kind": "gerritcodereview#plugin",
       "id": "delete-project",
       "index_url": "plugins/delete-project/",
-      "version": "2.9-SNAPSHOT",
+      "version": "2.9-SNAPSHOT"
     },
     "reviewers-by-blame": {
       "kind": "gerritcodereview#plugin",
@@ -55,7 +55,7 @@
       "index_url": "plugins/reviewers-by-blame/",
       "version": "2.9-SNAPSHOT",
       "disabled": true
-    },
+    }
   }
 ----