Update directory.md (#486)

* Update directory.md

Added support for Bedrock Llama 3

docs/plugins/directory.md

@@ -33,7 +33,7 @@ These plugins can be used to interact with remotely hosted models via their API:
 - **[llm-openrouter](https://github.com/simonw/llm-openrouter)** provides access to models hosted on [OpenRouter](https://openrouter.ai/).
 - **[llm-cohere](https://github.com/Accudio/llm-cohere)** by Alistair Shepherd provides `cohere-generate` and `cohere-summarize` API models, powered by [Cohere](https://cohere.com/).
 - **[llm-bedrock-anthropic](https://github.com/sblakey/llm-bedrock-anthropic)** by Sean Blakey adds support for Claude and Claude Instant by Anthropic via Amazon Bedrock.
-- **[llm-bedrock-meta](https://github.com/flabat/llm-bedrock-meta)** by Fabian Labat  adds support for Llama 2 by Meta via Amazon Bedrock.
+- **[llm-bedrock-meta](https://github.com/flabat/llm-bedrock-meta)** by Fabian Labat adds support for Llama 2 and Llama 3 by Meta via Amazon Bedrock.
 - **[llm-together](https://github.com/wearedevx/llm-together)** adds support for the [Together AI](https://www.together.ai/) extensive family of hosted openly licensed models.
 
 If an API model host provides an OpenAI-compatible API you can also [configure LLM to talk to it](https://llm.datasette.io/en/stable/other-models.html#openai-compatible-models) without needing an extra plugin.