docs: add engines

docs/engines/legacy_script_engine.md

@@ -0,0 +1,29 @@
+# LegacyScriptEngine
+
+A plugin engine for running LLSE plugins on LeviLamina
+
+## Install
+
+```sh
+lip install github.com/LiteLDev/LegacyScriptEngine
+```
+
+## Usage
+
+1. Put LLSE plugins directly in `/path/to/bedrock_dedicated_server/plugins/`。
+
+2. Run the server, then the plugins will be migrated to LeviLamina plugin manifest automatically.
+
+3. To load them, you need to restart the server.
+
+For more information, please refer to [the documentation](https://lse.liteldev.com).
+
+## Contributing
+
+If you have any questions, please open an issue to discuss it.
+
+PRs are welcome.
+
+## License
+
+GPL-3.0-only © LiteLDev

mkdocs.yml

@@ -35,6 +35,9 @@ nav:
 
   - discuss.md
 
+  - Engines:
+    - LegacyScriptEngine: engines/legacy_script_engine.md
+
   - Plugins: https://lippkg.com
 
 exclude_docs: |
@@ -106,6 +109,7 @@ plugins:
             Tutorials: 教程
             Guides: 指南
             APIs: 接口
+            Engines: 引擎
             Plugins: 插件
 
   - search