Use the paired original instruction in the inference example

README.md

@@ -46,14 +46,15 @@ Download the Wan VAE, text encoder and tokenizer using the
 
 ## Inference
 
-After installing the ScaleNav code and preparing an observation:
+Prepare the paired observation and its original instruction using the
+[data instructions](https://github.com/yangyihui0502/ScaleNav#data), then run:
 
 ```bash
 awm check --checkpoint checkpoints/scalenav --sha256
 awm infer --checkpoint checkpoints/scalenav \
   --base-model checkpoints/Wan2.2-TI2V-5B \
   --image data/example/observation.png \
-  --prompt 'Approach the chair beside the table.' --output outputs/example
+  --prompt "$(cat data/example/instruction.txt)" --output outputs/example
 ```
 
 This produces a nine-step action trajectory and a generated video. Actions are