docs: Add MiniCPM-V-2.6 to multi-modal model list

Author: abetlen

README.md

@@ -503,6 +503,7 @@ Below are the supported multi-modal models and their respective chat handlers (P
 | [moondream2](https://huggingface.co/vikhyatk/moondream2) | `MoondreamChatHandler` | `moondream2` |
 | [nanollava](https://huggingface.co/abetlen/nanollava-gguf) | `NanollavaChatHandler` | `nanollava` |
 | [llama-3-vision-alpha](https://huggingface.co/abetlen/llama-3-vision-alpha-gguf) | `Llama3VisionAlphaChatHandler` | `llama-3-vision-alpha` |
+| [minicpm-v-2.6](https://huggingface.co/openbmb/MiniCPM-V-2_6-gguf) | `MiniCPMv26ChatHandler` | `minicpm-v-2.6` |
 
 Then you'll need to use a custom chat handler to load the clip model and process the chat messages and images.