TrivialFix: Correcting JSON syntax

Change-Id: I4c82b20d0b2a6ecd6ca997dfc429a3ea60d44048

api-ref/source/samples/certificates-ca-show-resp.json

@@ -1,5 +1,5 @@
 {
-   "cluster_uuid":"0b4b766f-1500-44b3-9804-5a6e12fe6df4"
+   "cluster_uuid":"0b4b766f-1500-44b3-9804-5a6e12fe6df4",
    "pem":"-----BEGIN CERTIFICATE-----\nMIICzDCCAbSgAwIBAgIQOOkVcEN7TNa9E80GoUs4xDANBgkqhkiG9w0BAQsFADAO\n-----END CERTIFICATE-----\n",
    "bay_uuid":"0b4b766f-1500-44b3-9804-5a6e12fe6df4",
    "links":[

api-ref/source/samples/cluster-get-one-resp.json

@@ -18,7 +18,7 @@
    "updated_at":"2016-08-29T06:53:24+00:00",
    "master_count":1,
    "coe_version": "v1.2.0",
-   "keypair":"my_keypair"
+   "keypair":"my_keypair",
    "cluster_template_id":"0562d357-8641-4759-8fed-8173f02c9633",
    "master_addresses":[
       "172.24.4.6"