[doc] Fix installation typo (#11220)

Co-authored-by: xiangzihao <460888207@qq.com>

docs/docs/en/guide/installation/pseudo-cluster.md

@@ -8,7 +8,7 @@ If you are a new hand and want to experience DolphinScheduler functions, we reco
 
 Pseudo-cluster deployment of DolphinScheduler requires external software support:
 
-* JDK：Download [JDK][jdk] (1.8+), and configure `JAVA_HOME` to and `PATH` variable. You can skip this step, if it already exists in your environment.
+* JDK：download [JDK][jdk] (1.8+), install and configure environment variable `JAVA_HOME` and append `bin` dir (included in `JAVA_HOME`) to `PATH` variable. You can skip this step if it already exists in your environment.
 * Binary package: Download the DolphinScheduler binary package at [download page](https://dolphinscheduler.apache.org/en-us/download/download.html)
 * Database: [PostgreSQL](https://www.postgresql.org/download/) (8.2.15+) or [MySQL](https://dev.mysql.com/downloads/mysql/) (5.7+), you can choose one of the two, such as MySQL requires JDBC Driver 8.0.16
 * Registry Center: [ZooKeeper](https://zookeeper.apache.org/releases.html) (3.4.6+)，[download link][zookeeper]

docs/docs/en/guide/installation/standalone.md

@@ -9,7 +9,7 @@ If you are a new hand and want to experience DolphinScheduler functions, we reco
 
 ## Preparation
 
-* JDK：download [JDK][jdk] (1.8+), and configure `JAVA_HOME` to and `PATH` variable. You can skip this step if it already exists in your environment.
+* JDK：download [JDK][jdk] (1.8+), install and configure environment variable `JAVA_HOME` and append `bin` dir (included in `JAVA_HOME`) to `PATH` variable. You can skip this step if it already exists in your environment.
 * Binary package: download the DolphinScheduler binary package at [download page](https://dolphinscheduler.apache.org/en-us/download/download.html).
 
 ## Start DolphinScheduler Standalone Server

docs/docs/zh/guide/installation/pseudo-cluster.md

@@ -8,7 +8,7 @@
 
 伪分布式部署 DolphinScheduler 需要有外部软件的支持
 
-* JDK：下载[JDK][jdk] (1.8+)，并将 JAVA_HOME 配置到以及 PATH 变量中。如果你的环境中已存在，可以跳过这步。
+* JDK：下载[JDK][jdk] (1.8+)，安装并配置 `JAVA_HOME` 环境变量，并将其下的 `bin` 目录追加到 `PATH` 环境变量中。如果你的环境中已存在，可以跳过这步。
 * 二进制包：在[下载页面](https://dolphinscheduler.apache.org/zh-cn/download/download.html)下载 DolphinScheduler 二进制包
 * 数据库：[PostgreSQL](https://www.postgresql.org/download/) (8.2.15+) 或者 [MySQL](https://dev.mysql.com/downloads/mysql/) (5.7+)，两者任选其一即可，如 MySQL 则需要 JDBC Driver 8.0.16
 * 注册中心：[ZooKeeper](https://zookeeper.apache.org/releases.html) (3.4.6+)，[下载地址][zookeeper]

docs/docs/zh/guide/installation/standalone.md

@@ -9,7 +9,7 @@ Standalone 仅适用于 DolphinScheduler 的快速体验.
 
 ## 前置准备工作
 
-* JDK：下载[JDK][jdk] (1.8+)，并将 `JAVA_HOME` 配置到以及 `PATH` 变量中。如果你的环境中已存在，可以跳过这步。
+* JDK：下载[JDK][jdk] (1.8+)，安装并配置 `JAVA_HOME` 环境变量，并将其下的 `bin` 目录追加到 `PATH` 环境变量中。如果你的环境中已存在，可以跳过这步。
 * 二进制包：在[下载页面](https://dolphinscheduler.apache.org/zh-cn/download/download.html)下载 DolphinScheduler 二进制包
 
 ## 启动 DolphinScheduler Standalone Server