docs: Fix table formatting

Author: abetlen

README.md

@@ -502,7 +502,7 @@ llm = Llama.from_pretrained(
 Below are the supported multi-modal models and their respective chat handlers (Python API) and chat formats (Server API).
 
 | Model | `LlamaChatHandler` | `chat_format` |
-| --- | --- | --- |
+|:--- |:--- |:--- |
 | [llava-v1.5-7b](https://huggingface.co/mys/ggml_llava-v1.5-7b) | `Llava15ChatHandler` | `llava-1-5` |
 | [llava-v1.5-13b](https://huggingface.co/mys/ggml_llava-v1.5-13b) | `Llava15ChatHandler` | `llava-1-5` |
 | [llava-v1.6-34b](https://huggingface.co/cjpais/llava-v1.6-34B-gguf) | `Llava16ChatHandler` | `llava-1-6` |