Add missing snapshot action in index.rst

In the file api-ref/source/v3/index.rst, it missed include
volumes-v3-snapshots-actions.inc, This change is to add it
and fix doc format error.

Change-Id: Ib6dc549f8bc8da5dfd64d0e390cd70b27cd63177

api-ref/source/v3/index.rst

@@ -24,6 +24,7 @@ Block Storage API V3 (CURRENT)
 .. List the other random volume APIs in just alphabetical order.
 .. include:: volume-manage.inc
 .. include:: volumes-v3-snapshots.inc
+.. include:: volumes-v3-snapshots-actions.inc
 .. include:: snapshot-manage.inc
 .. include:: os-vol-transfer-v3.inc
 

api-ref/source/v3/volumes-v3-snapshots-actions.inc

@@ -1,6 +1,5 @@
 .. -*- rst -*-
 
-====================================
 Snapshot actions (snapshots, action)
 ====================================
 
@@ -8,9 +7,9 @@ Administrator only. Resets status for a snapshot.
 
 
 Reset a snapshot's status
-=========================
+~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. rest_method::  POST /v3/{tenant_id}/snapshots/{snapshot_id}/action
+.. rest_method::  POST /v3/{project_id}/snapshots/{snapshot_id}/action
 
 Resets the status. Specify the ``os-reset_status`` action in the request body.
 
@@ -22,10 +21,10 @@ Request
 
 .. rest_parameters:: parameters.yaml
 
-   - status: status_2
+   - project_id: project_id_path
+   - snapshot_id: snapshot_id_path
    - os-reset_status: os-reset_status
-   - tenant_id: tenant_id
+   - status: status_2
-   - snapshot_id: snapshot_id
 
 Request Example
 ---------------