Added missed response to test_server_tags

Also other server tags templates were modified
to improve future api ref docs.

Change-Id: Idab0328f9cdbe0d85880209a2b22ffc7df2201a0

doc/api_samples/os-server-tags/v2.26/server-tags-index-resp.json

@@ -1,3 +1,3 @@
 {
-    "tags": ["sometag"]
+    "tags": ["tag1", "tag2"]
 }

doc/api_samples/os-server-tags/v2.26/server-tags-put-all-req.json

@@ -1,5 +1,3 @@
 {
-    "tags": [
-        "sometag"
-    ]
+    "tags": ["tag1", "tag2"]
 }

doc/api_samples/os-server-tags/v2.26/server-tags-put-all-resp.json

@@ -0,0 +1,3 @@
+{
+    "tags": ["tag1", "tag2"]
+}

doc/api_samples/os-server-tags/v2.26/server-tags-show-details-resp.json

@@ -1,8 +1,6 @@
 {
     "server": {
-        "tags": [
-            "sometag"
-        ],
+        "tags": ["tag1", "tag2"],
         "accessIPv4": "1.2.3.4",
         "accessIPv6": "80fe::",
         "addresses": {

doc/api_samples/os-server-tags/v2.26/servers-tags-details-resp.json

@@ -55,7 +55,7 @@
             "updated": "2013-09-03T04:01:32Z",
             "user_id": "fake",
             "locked": false,
-            "tags": ["sometag"],
+            "tags": ["tag1", "tag2"],
             "description": null,
             "config_drive": "",
             "OS-DCF:diskConfig": "AUTO",