Update the description of quota's project id

Instead of QoS id, project id should be used for
quota's id attribute.

Change-Id: I201350caa984b66baf38ce9d74d09c7eda913034

api-ref/source/v2/quota-sets.inc

@@ -47,7 +47,7 @@ Response Parameters
    - quota_set: quota_set
    - cores: cores
    - fixed_ips: fixed_ips
-   - id: id
+   - id: project_id
    - security_groups: security_groups
 
 
@@ -87,7 +87,6 @@ Request
    - quota_set: quota_set
    - cores: cores
    - fixed_ips: fixed_ips
-   - id: id
    - security_groups: security_groups
    - project_id: quotas_project_id
    - admin_project_id: admin_project_id
@@ -118,7 +117,7 @@ Response Parameters
    - quota_set: quota_set
    - cores: cores
    - fixed_ips: fixed_ips
-   - id: id
+   - id: project_id
    - security_groups: security_groups
 
 Response Example
@@ -191,7 +190,7 @@ Response Parameters
    - quota_set: quota_set
    - cores: cores
    - fixed_ips: fixed_ips
-   - id: id
+   - id: project_id
    - security_groups: security_groups
 
 

api-ref/source/v3/quota-sets.inc

@@ -35,7 +35,7 @@ Response Parameters
 .. rest_parameters:: parameters.yaml
 
    - quota_set: quota_set
-   - id: qos_set_id
+   - id: project_id
    - volumes: volumes_number
    - volumes_{volume_type}: volumes_number_for_type
    - snapshots: snapshots_number
@@ -81,7 +81,7 @@ Response Parameters
 .. rest_parameters:: parameters.yaml
 
    - quota_set: quota_set
-   - id: qos_set_id
+   - id: project_id
    - volumes: volumes_number_usage
    - volumes_{volume_type}: volumes_number_for_type_usage
    - snapshots: snapshots_number_usage
@@ -209,7 +209,7 @@ Response Parameters
 .. rest_parameters:: parameters.yaml
 
    - quota_set: quota_set
-   - id: qos_set_id
+   - id: project_id
    - volumes: volumes_number
    - volumes_{volume_type}: volumes_number_for_type
    - snapshots: snapshots_number