document TiKV client operation.
@@ -45,7 +45,9 @@ When a node starts, the metadata of the Node, Store and Region are registered in
### Build
-TiKV is a component in the TiDB project, you must build and run it with TiDB and PD together.
+TiKV is a component in the TiDB project, to run TiDB you must build and run it with TiDB and PD together.
+Currently the only interface to TiKV is the [TiDB go cllient](https://github.com/pingcap/tidb/tree/master/store/tikv) and the [TiSpark java client](https://github.com/pingcap/tispark/tree/master/tikv-client/src/main/java/com/pingcap/tikv).
+You are welcome to develop drivers in other languages.
If you want to use TiDB in production, see [deployment build guide](https://github.com/pingcap/docs/blob/master/dev-guide/deployment.md) to build the TiDB project first.
