add address book doc

Signed-off-by: 21pages <sunboeasy@gmail.com>

content/self-host/rustdesk-server-pro/_index.ja.md

@@ -20,7 +20,7 @@ RustDesk Server Pro はオープンソース版と比較してより多くの機
 - [Webコンソール](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/console/)
 - [API](https://github.com/rustdesk/rustdesk/wiki/FAQ#api-of-rustdesk-server-pro)
 - [OIDC](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/oidc/)、[LDAP](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/ldap/)、[2FA](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/2fa/)
-- アドレス帳
+- [アドレス帳](/docs/ja/self-host/rustdesk-server-pro/address-book/)
 - ログ管理（接続、ファイル転送、アラームなど）
 - デバイス管理
 - [セキュリティ設定の同期](https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/strategy/)
@@ -112,4 +112,4 @@ https://rustdesk.com/docs/en/self-host/rustdesk-server-pro/faq/#8-add-websocket-
 
 ## セキュリティについて
 
-https://github.com/rustdesk/rustdesk/discussions/9835
+https://github.com/rustdesk/rustdesk/discussions/9835