Fix documentation for rendering specific models

web/docusaurus/docs/03-guides/05-standalone/01-model-rendering/index.md

@@ -7,7 +7,7 @@ For a complete example, see [examples/model_rendering](https://github.com/hexdoc
 ## Setup
 
 1. In a [virtual environment](https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/#create-and-use-virtual-environments), install the following Python packages:
-   * `hexdoc>=1!0.1.0a16`
+   * `hexdoc>=1!0.1.0a15`
    * `hexdoc-minecraft~={GAME_VERSION}.0` (eg. `hexdoc-minecraft~=1.19.2.0`)
 2. Create a [`hexdoc.toml` config file](../../configuration):
 
@@ -43,7 +43,10 @@ For a complete example, see [examples/model_rendering](https://github.com/hexdoc
 # render all available models
 hexdoc render-models --all
 
-# render one or more specific models
+# render a specific model
+hexdoc render-model minecraft:block/stone
+
+# render several specific models (since 1!0.1.0a16)
 hexdoc render-models minecraft:block/anvil hexcasting:amethyst_sconce
 ```