Improve sample usage section with code snippets

README.md

@@ -18,7 +18,19 @@ UP2You is a tuning-free framework for 3D human reconstruction from unconstrained
 
 ## Sample Usage
 
-To run the inference demo, please refer to [https://github.com/zcai0612/UP2You](https://github.com/zcai0612/UP2You) for more details.
+To run the inference pipeline with example images:
+```bash
+python inference_low_gpu.py \
+    --base_model_path stabilityai/stable-diffusion-2-1-base  \
+    --segment_model_name briaai/RMBG-2.0 \
+    --data_dir examples \
+    --output_dir outputs \
+```
+Alternatively, you can use the provided shell script:
+```bash
+bash run.sh
+```
+`examples` is the folder containing your unconstrained photos, and `outputs` is the directory where the generated 3D reconstruction results will be saved.
 
 ## Citation