Add ip_address to json examples in Runner API docs

doc/api/runners.md

@@ -30,6 +30,7 @@ Example response:
         "description": "test-1-20150125",
         "id": 6,
         "is_shared": false,
+        "ip_address": "127.0.0.1",
         "name": null,
         "online": true,
         "status": "online"
@@ -38,6 +39,7 @@ Example response:
         "active": true,
         "description": "test-2-20150125",
         "id": 8,
+        "ip_address": "127.0.0.1",
         "is_shared": false,
         "name": null,
         "online": false,
@@ -72,6 +74,7 @@ Example response:
         "active": true,
         "description": "shared-runner-1",
         "id": 1,
+        "ip_address": "127.0.0.1",
         "is_shared": true,
         "name": null,
         "online": true,
@@ -81,6 +84,7 @@ Example response:
         "active": true,
         "description": "shared-runner-2",
         "id": 3,
+        "ip_address": "127.0.0.1",
         "is_shared": true,
         "name": null,
         "online": false
@@ -90,6 +94,7 @@ Example response:
         "active": true,
         "description": "test-1-20150125",
         "id": 6,
+        "ip_address": "127.0.0.1",
         "is_shared": false,
         "name": null,
         "online": true
@@ -99,6 +104,7 @@ Example response:
         "active": true,
         "description": "test-2-20150125",
         "id": 8,
+        "ip_address": "127.0.0.1",
         "is_shared": false,
         "name": null,
         "online": false,
@@ -131,6 +137,7 @@ Example response:
     "architecture": null,
     "description": "test-1-20150125",
     "id": 6,
+    "ip_address": "127.0.0.1",
     "is_shared": false,
     "contacted_at": "2016-01-25T16:39:48.066Z",
     "name": null,
@@ -189,6 +196,7 @@ Example response:
     "architecture": null,
     "description": "test-1-20150125-test",
     "id": 6,
+    "ip_address": "127.0.0.1",
     "is_shared": false,
     "contacted_at": "2016-01-25T16:39:48.066Z",
     "name": null,
@@ -257,6 +265,7 @@ Example response:
 [
     {
         "id": 2,
+        "ip_address": "127.0.0.1",
         "status": "running",
         "stage": "test",
         "name": "test",
@@ -345,6 +354,7 @@ Example response:
         "active": true,
         "description": "test-2-20150125",
         "id": 8,
+        "ip_address": "127.0.0.1",
         "is_shared": false,
         "name": null,
         "online": false,
@@ -354,6 +364,7 @@ Example response:
         "active": true,
         "description": "development_runner",
         "id": 5,
+        "ip_address": "127.0.0.1",
         "is_shared": true,
         "name": null,
         "online": true
@@ -386,6 +397,7 @@ Example response:
     "active": true,
     "description": "test-2016-02-01",
     "id": 9,
+    "ip_address": "127.0.0.1",
     "is_shared": false,
     "name": null,
     "online": true,