docs: fix incorrrect windows environment variable name (#5399)

Author: 3gf8jv4dv

docs/Contributing.md

@@ -89,7 +89,7 @@ These options can be specified via environment variables or JVM parameters. If b
 | `HMCL_ANIMATION_FRAME_RATE` |                                              | Specifies the animation frame rate of HMCL                | `60`                                                                                                        |                           |
 | `HMCL_LANGUAGE`             |                                              | Specifies the default language of HMCL                    | Uses the system default language                                                                            |                           |
 |                             | `-Dhmcl.dir=<path>`                          | Specifies the current data folder of HMCL                 | `./.hmcl`                                                                                                   |                           |
-|                             | `-Dhmcl.home=<path>`                         | Specifies the user data folder of HMCL                    | Windows: `%APPDATA\.hmcl`<br>Linux/BSD: `$XDG_DATA_HOME/hmcl`<br>macOS: `~Library/Application Support/hmcl` |                           |
+|                             | `-Dhmcl.home=<path>`                         | Specifies the user data folder of HMCL                    | Windows: `%APPDATA%\.hmcl`<br>Linux/BSD: `$XDG_DATA_HOME/hmcl`<br>macOS: `~Library/Application Support/hmcl` |                           |
 |                             | `-Dhmcl.self_integrity_check.disable=true`   | Disables self-integrity checks during updates             |                                                                                                             |                           |
 |                             | `-Dhmcl.bmclapi.override=<url>`              | Specifies the API Root for BMCLAPI                        | `https://bmclapi2.bangbang93.com`                                                                           |                           |
 |                             | `-Dhmcl.discoapi.override=<url>`             | Specifies the API Root for foojay Disco API               | `https://api.foojay.io/disco/v3.0`                                                                          |                           | 

docs/Contributing_zh.md

@@ -88,7 +88,7 @@ HMCL 提供了一系列调试选项，用于控制启动器的行为。
 | `HMCL_ANIMATION_FRAME_RATE` |                                              | 指定 HMCL 的动画帧率                  | `60`                                                                                                        |              |
 | `HMCL_LANGUAGE`             |                                              | 指定 HMCL 的默认语言                  | 使用系统默认语言                                                                                                    |
 |                             | `-Dhmcl.dir=<path>`                          | 指定 HMCL 的当前数据文件夹               | `./.hmcl`                                                                                                   |              |
-|                             | `-Dhmcl.home=<path>`                         | 指定 HMCL 的用户数据文件夹               | Windows: `%APPDATA\.hmcl`<br>Linux/BSD: `$XDG_DATA_HOME/hmcl`<br>macOS: `~Library/Application Support/hmcl` |              |
+|                             | `-Dhmcl.home=<path>`                         | 指定 HMCL 的用户数据文件夹               | Windows: `%APPDATA%\.hmcl`<br>Linux/BSD: `$XDG_DATA_HOME/hmcl`<br>macOS: `~Library/Application Support/hmcl` |              |
 |                             | `-Dhmcl.self_integrity_check.disable=true`   | 检查更新时不检查本体完整性                  |                                                                                                             |              |
 |                             | `-Dhmcl.bmclapi.override=<url>`              | 指定 BMCLAPI 的 API Root          | `https://bmclapi2.bangbang93.com`                                                                           |              |
 |                             | `-Dhmcl.discoapi.override=<url>`             | 指定 foojay Disco API 的 API Root | `https://api.foojay.io/disco/v3.0`                                                                          |