change dir '.appd' to '.app' (#8695)

docs/basics/app-anatomy.md

@@ -33,7 +33,7 @@ The blockchain full-node presents itself as a binary, generally suffixed by `-d`
 Once the main binary is built, the node can be started by running the [`start` command](../core/node.md#start-command). This command function primarily does three things:
 
 1. Create an instance of the state-machine defined in [`app.go`](#core-application-file).
-2. Initialize the state-machine with the latest known state, extracted from the `db` stored in the `~/.appd/data` folder. At this point, the state-machine is at height `appBlockHeight`.
+2. Initialize the state-machine with the latest known state, extracted from the `db` stored in the `~/.app/data` folder. At this point, the state-machine is at height `appBlockHeight`.
 3. Create and start a new Tendermint instance. Among other things, the node will perform a handshake with its peers. It will get the latest `blockHeight` from them, and replay blocks to sync to this height if it is greater than the local `appBlockHeight`. If `appBlockHeight` is `0`, the node is starting from genesis and Tendermint sends an `InitChain` message via the ABCI to the `app`, which triggers the [`InitChainer`](#initchainer).
 
 ## Core Application File
@@ -77,7 +77,7 @@ Here are the main actions performed by this function:
 - Mount the stores.
 - Return the application.
 
-Note that this function only creates an instance of the app, while the actual state is either carried over from the `~/.appd/data` folder if the node is restarted, or generated from the genesis file if the node is started for the first time.
+Note that this function only creates an instance of the app, while the actual state is either carried over from the `~/.app/data` folder if the node is restarted, or generated from the genesis file if the node is started for the first time.
 
 See an example of application constructor from `simapp`:
 

docs/cn/basics/app-anatomy.md

@@ -28,7 +28,7 @@ Blockchain Node |  |           Consensus           |  |
 
 1. [`app.go`] 创建了一个状态机实例。
 
-2. 用最新的已知状态初始化状态机，该状态机是从存储在 `~/.appd/data` 文件夹中的 db 中提取的。 此时，状态机的高度为：`appBlockHeight`。
+2. 用最新的已知状态初始化状态机，该状态机是从存储在 `~/.app/data` 文件夹中的 db 中提取的。 此时，状态机的高度为：`appBlockHeight`。
 
 3. 创建并启动一个新的 Tendermint 实例。 该节点将与对等节点进行连接交换信息。 它将从他们那里获取最新的 `blockHeight`，如果它大于本地的 `appBlockHeight`，则重播块以同步到该高度。 如果 `appBlockHeight` 为 `0`，则该节点从创世开始，并且 Tendermint 通过 ABCI 接口向 `app` 发送 `InitChain` 初始化链命令，从而触发 [`InitChainer`](https://docs.cosmos.network/master/basics/app-anatomy.html#initchainer)。
 
@@ -73,7 +73,7 @@ Blockchain Node |  |           Consensus           |  |
 - 挂载存储.
 - 返回应用实例.
 
-请注意，此函数仅创建该应用的一个实例，而如果重新启动节点，则状态将从 `〜/.appd/data` 文件夹中保留下来状态加载，如果节点是第一次启动，则从创世文件生成。See an example of application constructor from [`gaia`](https://github.com/cosmos/gaia):
+请注意，此函数仅创建该应用的一个实例，而如果重新启动节点，则状态将从 `〜/.app/data` 文件夹中保留下来状态加载，如果节点是第一次启动，则从创世文件生成。See an example of application constructor from [`gaia`](https://github.com/cosmos/gaia):
 
 +++ https://github.com/cosmos/gaia/blob/f41a660cdd5bea173139965ade55bd25d1ee3429/app/app.go#L110-L222