Update xpk guide with latest path to bash script

Author: Shuwen-Fang

docs/run_maxtext/run_maxtext_via_xpk.md

@@ -130,13 +130,13 @@ ______________________________________________________________________
    - **For TPUs:**
 
      ```
-     bash docker_build_dependency_image.sh DEVICE=tpu MODE=stable
+     bash dependencies/scripts/docker_build_dependency_image.sh DEVICE=tpu MODE=stable
      ```
 
    - **For GPUs:**
 
      ```
-     bash docker_build_dependency_image.sh DEVICE=gpu MODE=stable
+     bash dependencies/scripts/docker_build_dependency_image.sh DEVICE=gpu MODE=stable
      ```
 
 ______________________________________________________________________