diff --git a/doc/source/index.rst b/doc/source/index.rst
index bde9904..e37ed59 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -1,7 +1,9 @@
 Virtual Private Cloud
 =====================
+
 The Virtual Private Cloud (VPC) service enables you to provision logically isolated, configurable, and manageable virtual networks for Elastic Cloud Servers (ECSs), improving the security of resources in the cloud system and simplifying network deployment.
 
+
 .. directive_wrapper::
    :class: container-sbv
 
@@ -9,4 +11,4 @@ The Virtual Private Cloud (VPC) service enables you to provision logically isola
       :service_type: vpc
       :umn: This document describes Virtual Private Cloud service, helping you quickly create and properly use the service.
       :api-ref: This document describes application programming interfaces (APIs) of Virtual Private Cloud (VPC) and provides API parameter description and example values.
-      :dev: This document describes how to call the APIs of Virtual Private Cloud (VCS) to use VPC functions.
+