Update backups(v2) api-ref

Revising some wrongs of backups(v2) in api-ref docs

Change-Id: Ic04b60bcf32df5f33899fae6610785533edbfa6c

api-ref/source/v2/backups-v2.inc

@@ -53,3 +53,73 @@ Response Example
 .. literalinclude:: samples/backup-list-response.json
    :language: javascript
 
+
+Show backups(v2)
+================
+
+.. rest_method::  GET /v2/{project_id}/backups/{backup_id}
+
+Shows a backups.
+
+This operation shows a certain backup. The backup details.
+
+Normal response codes: 200
+
+Error response codes:
+
+- Unauthorized (401)
+- Forbidden (403)
+
+
+Query Parameters
+-----------------
+
+.. rest_parameters:: parameters.yaml
+
+  - project_id: project_id_path
+  - backup_id: backup_id_path
+
+Response Parameters
+-------------------
+
+.. rest_parameters:: parameters.yaml
+
+  - project_id: project_id
+  - user_id: user_id
+  - backup_id: backup_id
+  - username: username
+  - backup_metadata: backup_metadata
+
+
+Response Example
+----------------
+
+.. literalinclude:: samples/backup-get-response.json
+   :language: javascript
+
+
+Delete backups(v2)
+==================
+
+.. rest_method::  DELETE /v2/{project_id}/actions/{backup_id}
+
+Delete backups in a project.
+
+This operation deletes a certain backup.
+
+Normal response codes: 204
+
+Error response codes:
+
+- Unauthorized (401)
+- Forbidden (403)
+
+Query Parameters
+-----------------
+
+.. rest_parameters:: parameters.yaml
+
+  - project_id: project_id_path
+  - backup_id: backup_id_path
+
+There is no response for this operation.

api-ref/source/v2/samples/backup-list-response.json

@@ -1,6 +1,7 @@
 {
   "backups": [
     {
+      "project_id": "752d8bd43d654e7a840bbfda77ce41af",
       "backup_id": "96a5946a6e994a38a3d1008fbc6f3406",
       "user_id": "a387de3311484ce58c4560486bc153f1",
       "job_id": "df96800d16fc4d28af75c8451daf0a92",
@@ -37,6 +38,7 @@
       "user_name": "os_backup"
     },
     {
+      "project_id": "752d8bd43d654e7a840bbfda77ce41af",
       "backup_id": "0cd44caf6db5486b94a04b33256a5ff4",
       "user_id": "a387de3311484ce58c4560486bc153f1",
       "job_id": "b30efac3ef744c45bf3062775ea3525b",