style: highlight mentioned files in FileTree (#581)

Author: Doc94

src/content/docs/paper/dev/api/plugin-configs.mdx

@@ -35,7 +35,7 @@ This will be located in the `resources` directory:
       - main/
         - java/
         - resources/
-          - config.yml
+          - **config.yml**
           - plugin.yml
 </FileTree>
 

src/content/docs/paper/dev/getting-started/plugin-yml.mdx

@@ -21,7 +21,7 @@ The `plugin.yml` file is located in the `resources` directory of your project.
       - main/
         - java/
         - resources/
-          - plugin.yml
+          - **plugin.yml**
 </FileTree>
 
 ## Example