add simplest demo

README.md

@@ -42,6 +42,53 @@
       <img style="width:100%" src="new_q_instruct.png">
   </div>
   </div>   
+
+
+## Quick Start
+
+- LLaVA-v1.5
+
+1. Install LLaVA.
+
+```shell
+git clone https://github.com/haotian-liu/LLaVA.git
+cd LLaVA
+pip install -e ".[train]"
+```
+
+2. Automatically download the pre-trained weights from Q-Instruct.
+
+```python
+from llava.mm_utils import get_model_name_from_path
+from llava.eval.run_llava import eval_model
+
+# default LLaVA-v1.5 (7B)
+# change to `model_path = "teowu/llava_v1.5_13b_qinstruct_preview_v0.1"` for LLaVA-v1.5 (13B)
+model_path = "teowu/llava_v1.5_7b_qinstruct_preview_v0.1" 
+
+prompt = "Which is the darkest corner of the image?"
+image_file = "fig/sausage.jpg"
+
+args = type('Args', (), {
+    "model_path": model_path,
+    "model_base": None,
+    "model_name": get_model_name_from_path(model_path),
+    "query": prompt,
+    "conv_mode": None,
+    "image_file": image_file,
+    "sep": ",",
+})()
+
+eval_model(args)
+```
+
+- mPLUG-Owl-2
+
+Coming soon.
+
+- InternLM-XComposer-VL
+
+Coming soon.
 
 
 ## Model Zoo