Fix some broken links

content/concepts/the-rippled-server/rippled-server-modes.ja.md

@@ -60,6 +60,17 @@ XRP Ledgerの堅牢性は、バリデータが相互に接続されたネット
 
 **注意:** スタンドアロンモードでは[レジャーを手動で進める](advance-the-ledger-in-stand-alone-mode.html)必要があります。
 
+## レポーティングモード
+[導入: rippled 1.7.0][][]
+
+<!-- TODO: translate this section -->
+Reporting mode is specialized mode for serving API requests more efficiently. In this mode, the server gets the latest validated ledger data over [gRPC](https://xrpl.org/configure-grpc.html) from a separate `rippled` server running in P2P Mode, then loads that data into a relational database ([PostgreSQL](https://www.postgresql.org/)). The reporting mode server does not directly participate in the peer-to-peer network, though it can forward requests such as transaction submission to the P2P Mode server it uses.
+
+Multiple reporting mode servers can share access to a PostgreSQL database and [Apache Cassandra](https://cassandra.apache.org/) cluster to serve a large amount of history without each server needing a redundant copy of all the data. Reporting mode servers provide this data through the same [`rippled` APIs](rippled-api.html) with some slight changes to accommodate for the differences in how they store the underlying data.
+
+Most notably, reporting mode servers do not report pending, non-validated ledger data or transactions. This limitation is relevant to certain use cases that rely on rapid access to in-flux data, such as performing arbitrage in the [decentralized exchange](decentralized-exchange.html).
+
+
 
 ## 関連項目
 
@@ -70,7 +81,7 @@ XRP Ledgerの堅牢性は、バリデータが相互に接続されたネット
 - **チュートリアル:**
   - [`rippled`の構成](configure-rippled.html)
     - [バリデータとしての`rippled`の実行](run-rippled-as-a-validator.html)
-  - [スタンドアロンモードでのrippledの使用](use-stand-alone-mode.html): 
+  - [スタンドアロンモードでのrippledの使用](use-stand-alone-mode.html):
     - [スタンドアロンモードでの新しいジェネシスレジャーの開始](start-a-new-genesis-ledger-in-stand-alone-mode.html)
     - [スタンドアロンモードでの保存済みレジャーの読み込み](load-a-saved-ledger-in-stand-alone-mode.html)
     - [スタンドアロンモードでレジャーを進める](advance-the-ledger-in-stand-alone-mode.html)